Princess Maha Chakri Sirindhorn, The Princess Royal and Princess Debaratana Rajasuda ( th, มหาจักรีสิรินธร, ; ; born April 2, 1955), formerly Princess Sirindhorn Debaratanasuda Kitivadhanadulsobhak ( th, สมเด็จพระเจ้าลูกเธอ เจ้าฟ้าสิรินธรเทพรัตนสุดา กิติวัฒนาดุลโสภาคย์; ), is the second daughter of King

Bhumibol Adulyadej Bhumibol Adulyadej ( th, ภูมิพลอดุลยเดช; ; ; (Sanskrit: ''bhūmi·bala atulya·teja'' - "might of the land, unparalleled brilliance"); 5 December 192713 October 2016), conferred with the title King Bhumibol the Great ...

and younger sister of King Vajiralongkorn.; ). After Vajiralongkorn's coronation, Sirindhorn was invested of the title Somdech Phra Kanishthadhiraj Chao Krom Somdech Phra Debaratnarajsuda Chao Fa Maha Chakri Sirindhorn Maha Vajiralongkorn Vorarajbhakti Sirikitchakarinibirayabadhana Rathasimagunakornpiyajat Sayamboromrajakumari ( th, สมเด็จพระกนิษฐาธิราชเจ้า กรมสมเด็จพระเทพรัตนราชสุดา เจ้าฟ้ามหาจักรีสิรินธร มหาวชิราลงกรณวรราชภักดี สิริกิจการิณีพีรยพัฒน รัฐสีมาคุณากรปิยชาติ สยามบรมราชกุมารี; ). Thais commonly refer to her as "Phra Thep" ( th, พระเทพ), meaning "princess angel". Her title in Thai is the female equivalent of the title once held by her brother,

King King is the title given to a male monarch in a variety of contexts. The female equivalent is queen, which title is also given to the consort of a king. *In the context of prehistory, antiquity and contemporary indigenous peoples, the tit ...

Maha Vajiralongkorn. The Thai constitution was altered in 1974 to allow for female succession, thus making her eligible for the throne. Having been the eldest female child of the royal family (excluding Princess Ubolratana Rajakanya, who married a foreign commoner), her position is comparable to a

princess royal Princess Royal is a style customarily (but not automatically) awarded by a British monarch to their eldest daughter. Although purely honorary, it is the highest honour that may be given to a female member of the royal family. There have been se ...

Early life

Birth

Sirindhorn was born on April 2, 1955, at

Amphorn Sathan Residential Hall The Amphorn Sathan Residential Hall or the Ambara Villa ( th, พระที่นั่งอัมพรสถาน: ''Phra Thinang Amphorn Sathan'') is a royal mansion situated inside Bangkok's Dusit Palace. It served as the primary residence ...

Dusit Palace Dusit Palace ( th, พระราชวังดุสิต, RTGS: ''Phra Ratcha Wang Dusit'') is a compound of royal residences in Bangkok, Thailand. Constructed over a large area north of Rattanakosin Island between 1897 and 1901 by King C ...

. The third child of King

Bhumibol Bhumibol Adulyadej ( th, ภูมิพลอดุลยเดช; ; ; (Sanskrit: ''bhūmi·bala atulya·teja'' - "might of the land, unparalleled brilliance"); 5 December 192713 October 2016), conferred with the title King Bhumibol the Great ...

and Queen

Sirikit Queen Sirikit ( th, สิริกิติ์; ; ); born ''Mom Rajawongse'' Sirikit Kitiyakara ( th, สิริกิติ์ กิติยากร; ; 12 August 1932) is the queen mother of Thailand. She was Queen of Thailand as the wif ...

. As the royal couple has only one son, the Thai constitution was altered in 1974 to allow for female succession. This made Sirindhorn second-in-line to the throne (after Vajiralongkorn) until the birth of Princess

Bajrakitiyabha Princess Bajrakitiyabha Narendira Debyavati, the Princess Rajasarini Siribajra ( th, พัชรกิติยาภา นเรนทิราเทพยวดี, , also known as Princess Pa or Patty, born 7 December 1978) is a Thai diplom ...

in 1978.

Early education

Sirindhorn attended Kindergarten, Primary and Secondary at Thailand's most exclusive school: The Chitralada School which was established for the children of the Royal Family and Palace staff.Sut.ac
education information
She ranked first in the National School Examinations in primary level (grade 7) in 1967, in upper secondary level (grade 12) in 1972, and fourth in the National University Entrance Examination in 1975.Pattayamail
more education information
/ref>

Higher education

In 1975 she enrolled in the faculty of arts at

Chulalongkorn University Chulalongkorn University (CU, th, จุฬาลงกรณ์มหาวิทยาลัย, ), nicknamed Chula ( th, จุฬาฯ), is a public and autonomous research university in Bangkok, Thailand. The university was originally fo ...

and graduated with a Bachelor of Arts, first-class honours and a gold medal in history in 1976. From 1976 she continued her studies in two graduate programs concurrently, obtaining a Master of Arts in Oriental epigraphy (

Sanskrit Sanskrit (; attributively , ; nominally , , ) is a classical language belonging to the Indo-Aryan branch of the Indo-European languages. It arose in South Asia after its predecessor languages had diffused there from the northwest in the late ...

and Cambodian) in 1980 and also

archaeology Archaeology or archeology is the scientific study of human activity through the recovery and analysis of material culture. The archaeological record consists of artifacts, architecture, biofacts or ecofacts, sites, and cultural landsca ...

from

Silpakorn University Silpakorn University (SU.) ( th, มหาวิทยาลัยศิลปากร; ) is a national university in Thailand. The university was founded in Bangkok in 1943 by Tuscan–born art professor Corrado Feroci, who took the Thai name S ...

in 1980. From October 1977, she studied Sanskrit in Bangkok for two years under the tutelage of renowned Sanskrit scholar

Satya Vrat Shastri Satya Vrat Shastri (29 September 1930 – 14 November 2021) was an Indian Sanskrit scholar, writer, grammarian and poet. He wrote three Mahakavyas, three Khandakavyas, one Prabandhakavyas and one Patrakavya and five works in critical writing i ...

. In 1978, she obtained a Master of Arts in

Pali Pali () is a Middle Indo-Aryan liturgical language native to the Indian subcontinent. It is widely studied because it is the language of the Buddhist ''Pāli Canon'' or '' Tipiṭaka'' as well as the sacred language of '' Theravāda'' Buddh ...

and

from

. In 1981 she enrolled in a doctoral program at

Srinakharinwirot University Srinakharinwirot University (abbr: SWU; th, มหาวิทยาลัยศรีนครินทรวิโรฒ; abbr: มศว) is a public university in Bangkok, Thailand. Founded in 1949, the university was the first upper-educati ...

, and was awarded a PhD in developmental education in 1987. In 1984 she earned a certificate from the Asian Regional Remote Sensing Training Centre at the Asian Institute of Technology where she studied for two months.Asian Institute of Technology
degree information
In April 2001 she won a scholarship in

Chinese culture Chinese culture () is one of the world's oldest cultures, originating thousands of years ago. The culture prevails across a large geographical region in East Asia and is extremely diverse and varying, with customs and traditions varying grea ...

at Peking University in China where she studied the course for a month. Peking University
scholarship and award information

Later life

In December 2012, Sirindhorn was briefly hospitalised to remove calcium deposits. More popular among the Thai public than her brother Crown Prince Vajiralongkorn, Sirindhorn was long rumored to be a potential successor to the Thai throne. In the event, on Bhumibol's death in 2016, the crown went to Vajiralongkorn, now King Rama X. In January 2021, Sirindhorn was hospitalized after breaking both her ankles. Thai media reported that she fell during a walk; however, Western sources alleged that her ankles were broken by Vajiralongkorn after an argument.

Works and interests

Aside from her passion for technology, she holds degrees in history and a doctorate in educational development. She teaches at the history department of the

Chulachomklao Royal Military Academy Chulachomklao Royal Military Academy (CRMA) ( th, โรงเรียนนายร้อยพระจุลจอมเกล้า, translit=Roong riian naai rɔ́ɔi prá Jù-lá-jɔɔm-glâo or รร.จปร.) is the service academy o ...

, where she is the nominal head of the department. In addition to Thai, she speaks fluent English, French and Mandarin Chinese, and is currently studying German and

Latin Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the ...

. She translates Chinese literature into Thai. She is also a skilled performer and avid promoter of Thai traditional music. Like her father

, Princess Sirindhorn holds a certificate as a radio amateur, with her

call sign In broadcasting and radio communications, a call sign (also known as a call name or call letters—and historically as a call signal—or abbreviated as a call) is a unique identifier for a transmitter station. A call sign can be formally assign ...

being HS1D.

Scholarship

The

University of Liverpool , mottoeng = These days of peace foster learning , established = 1881 – University College Liverpool1884 – affiliated to the federal Victoria Universityhttp://www.legislation.gov.uk/ukla/2004/4 University of Manchester Act 200 ...

introduced a prestigious new scholarship in honour of Sirindhorn. One full scholarship will be awarded annually to enable a Thai student to study at

Liverpool Liverpool is a city and metropolitan borough in Merseyside, England. With a population of in 2019, it is the 10th largest English district by population and its metropolitan area is the fifth largest in the United Kingdom, with a populat ...

to complete a one-year taught Masters programme. The scholarship is open to all subjects in which a one-year taught Masters programme is offered; however, priority will be given to those students who wish to study in a subject area associated with Princess Sirindhorn such as science, information technology, medicine,

the arts The arts are a very wide range of human practices of creative expression, storytelling and cultural participation. They encompass multiple diverse and plural modes of thinking, doing and being, in an extremely broad range of media. Both ...

geography Geography (from Greek: , ''geographia''. Combination of Greek words ‘Geo’ (The Earth) and ‘Graphien’ (to describe), literally "earth description") is a field of science devoted to the study of the lands, features, inhabitants, an ...

, history, and languages. To be eligible for the scholarship, applicants must be a Thai national and already hold an offer to study a one-year taught Masters programme at the

Honours and awards

Military rank

General A general officer is an officer of high rank in the armies, and in some nations' air forces, space forces, and marines or naval infantry. In some usages the term "general officer" refers to a rank above colonel."general, adj. and n.". OED ...

, Admiral and Air Chief Marshal

Volunteer Defense Corps of Thailand rank

* Volunteer Defense Corps General

Academic rank

* Professor of

Foreign honours

* : Grand Cross of the Order of Honour for Services to the Republic of Austria * : Recipient of the

Order of Friendship The Order of Friendship (russian: Орден Дружбы, ') is a state decoration of the Russian Federation established by Boris Yeltsin by presidential decree 442 of 2 March 1994 to reward Russian and foreign nationals whose work, deeds ...

* :

Padma Bhushan The Padma Bhushan is the third-highest civilian award in the Republic of India, preceded by the Bharat Ratna and the Padma Vibhushan and followed by the Padma Shri. Instituted on 2 January 1954, the award is given for "distinguished service ...

* : Grand Cross of the

Order of Diplomatic Service Merit The Order of Diplomatic Service Merit (Hangul: 수교훈장) is one of South Korea's orders of merit. It is awarded by the President of South Korea for "outstanding meritorious services in the interest of enhancing national prestige and promoting ...

* : Honorary Grand Commander of the

Order of Loyalty to the Crown of Malaysia The Most Esteemed Order of Loyalty to the Crown of Malaysia ( ms, Darjah Yang Mulia Setia Mahkota Malaysia) is a Malaysian federal award presented for meritorious service to the country and awarded by the sovereign. The order was instituted ...

* : Grand Cross of the

Order of the Polar Star The Royal Order of the Polar Star ( Swedish: ''Kungliga Nordstjärneorden'') is a Swedish order of chivalry created by King Frederick I on 23 February 1748, together with the Order of the Sword and the Order of the Seraphim. The Order of t ...

* : Grand Cross of the Order of the Crescent of Pakistan * : Knight Grand Cross of the

Order of Isabella the Catholic The Order of Isabella the Catholic ( es, Orden de Isabel la Católica) is a Spanish civil order and honor granted to persons and institutions in recognition of extraordinary services to the homeland or the promotion of international relations a ...

* : Member Grand Cross of the

Royal Order of the Seraphim The Royal Order of the Seraphim ( sv, Kungliga Serafimerorden; ''Seraphim'' being a category of angels) is a Swedish order of chivalry created by King Frederick I on 23 February 1748, together with the Order of the Sword and the Order of the P ...

Awards

* : International Union of Nutritional Sciences AwardWord doc
award and position information
* : Chinese Language and Culture Friendship Award * Chinese Literature Foundation of Chinese Writers Association: Understanding and Friendship International Literature Award * : Indira Gandhi Prize * : Ramon Magsaysay Award for Public Service

Honorary degrees

; National *

Chiang Mai University Chiang Mai University ( CMU; th, มหาวิทยาลัยเชียงใหม่) is a public research university in northern Thailand founded in 1964. It has a strong emphasis on engineering, science, agriculture, and medicine. It ...

Geography Geography (from Greek: , ''geographia''. Combination of Greek words ‘Geo’ (The Earth) and ‘Graphien’ (to describe), literally "earth description") is a field of science devoted to the study of the lands, features, inhabitants, an ...

: Thai language * Asian Institute of Technology:

Technology Technology is the application of knowledge to reach practical goals in a specifiable and Reproducibility, reproducible way. The word ''technology'' may also mean the product of such an endeavor. The use of technology is widely prevalent in me ...

; Foreign * : ** –

The University of Hong Kong The University of Hong Kong (HKU) (Chinese: 香港大學) is a public research university in Hong Kong. Founded in 1887 as the Hong Kong College of Medicine for Chinese, it is the oldest tertiary institution in Hong Kong. HKU was also the fir ...

Doctor of Letters Doctor of Letters (D.Litt., Litt.D., Latin: ' or ') is a terminal degree in the humanities that, depending on the country, is a higher doctorate after the Doctor of Philosophy (Ph.D.) degree or equivalent to a higher doctorate, such as the Docto ...

** Peking University:

Chinese language Chinese (, especially when referring to written Chinese) is a group of languages spoken natively by the ethnic Han Chinese majority and many minority ethnic groups in Greater China. About 1.3 billion people (or approximately 16% of the ...

* –

Tokai University is a private non-sectarian higher education institution located in Tokyo, Japan. It was founded by Dr. Shigeyoshi Matsumae. It was accredited under Japan's old educational system in 1946 and under the new system in 1950. In 2008, Tokai Un ...

Engineering Engineering is the use of scientific principles to design and build machines, structures, and other items, including bridges, tunnels, roads, vehicles, and buildings. The discipline of engineering encompasses a broad range of more speciali ...

* – University of the Philippines Los Baños:

Law Law is a set of rules that are created and are enforceable by social or governmental institutions to regulate behavior,Robertson, ''Crimes against humanity'', 90. with its precise definition a matter of longstanding debate. It has been vario ...

* : ** –

Pomona College Pomona College ( ) is a private liberal arts college in Claremont, California. It was established in 1887 by a group of Congregationalists who wanted to recreate a "college of the New England type" in Southern California. In 1925, it became t ...

Doctor of Humane Letters The degree of Doctor of Humane Letters (; DHumLitt; DHL; or LHD) is an honorary degree awarded to those who have distinguished themselves through humanitarian and philanthropic contributions to society. The criteria for awarding the degree differ ...

** –

Indiana University Bloomington Indiana University Bloomington (IU Bloomington, Indiana University, IU, or simply Indiana) is a public research university in Bloomington, Indiana. It is the flagship campus of Indiana University and, with over 40,000 students, its largest ca ...

: Doctor of Humane Letters ** –

Northern Illinois University Northern Illinois University (NIU) is a public research university in DeKalb, Illinois. It was founded as Northern Illinois State Normal School on May 22, 1895, by Illinois Governor John P. Altgeld as part of an expansion of the state's system ...

: Doctor of Humane Letters ** –

Johns Hopkins University Johns Hopkins University (Johns Hopkins, Hopkins, or JHU) is a private research university in Baltimore, Maryland. Founded in 1876, Johns Hopkins is the oldest research university in the United States and in the western hemisphere. It consi ...

: Doctor of Humane Letters ** –

Bay Path University Bay Path University is a private university in Longmeadow, Massachusetts. Bay Path offers both all-women bachelor's degree programs (both on-campus and online), co-educational master's degree programs (both on-campus and online), an occupational ...

: Doctor of Humane Letters

Honorary titles

* : ''People’s Friendship Ambassador'' * : ''Special Ambassador of the World Food Programme for School Feeding'' * : ''

UNESCO Goodwill Ambassador UNESCO Goodwill Ambassador is an official postnominal honorific title, title of authority, legal status and job description assigned to those goodwill ambassadors and advocates who are designated by the United Nations. UNESCO goodwill ambas ...

for "Empowerment of Minority Children through Education and through the Preservation of Their Intangible Cultural Heritage"''

Eponyms

Institutions

National

A number of academic and research institutions in Thailand are named after her:
Princess Sirindhorn's College
Mueang Nakhon Pathom, Nakhon Pathom Province. *

Princess Maha Chakri Sirindhorn Anthropology Centre Princess Maha Chakri Sirindhorn Anthropology Centre (SAC) ( th, ศูนย์มานุษยวิทยาสิรินธร) is an academic institution under the Ministry of Culture in Taling Chan District, Bangkok, Thailand, established ...

* Mahachakri Sirindhorn and Boromrajkumari Building,

Faculty of Arts A faculty is a division within a university or college comprising one subject area or a group of related subject areas, possibly also delimited by level (e.g. undergraduate). In American usage such divisions are generally referred to as colleges ...

, Bangkok. * Somdech Phra Debaratana Medical Center,

Ramathibodi Hospital Ramathibodi Hospital ( th, โรงพยาบาลรามาธิบดี ) is a university hospital of the Faculty of Medicine Ramathibodi Hospital, Mahidol University. and is a hospital capable of super tertiary care. It is a teaching ...

, Bangkok. * Princess Maha Chakri Sirindhorn Music Library, Mahidol University, Bangkok *

Sirindhorn International Institute of Technology Sirindhorn International Institute of Technology ( Thai: สถาบันเทคโนโลยีนานาชาติสิรินธร) (SIIT) is a semi-autonomous institute of technology established in 1992 within Thammasat Universi ...

(SIIT),

Thammasat University Thammasat University ( Abrv: TU th, มธ.; th, มหาวิทยาลัยธรรมศาสตร์, , ) is a public research university in Thailand with campuses in Tha Phra Chan area of Phra Nakhon District near the Grand Pala ...

, Bangkok.
Sirindhorn International Thai-German Graduate School of Engineering (TGGS)

King Mongkut's Institute of Technology North Bangkok , motto_lang = th , mottoeng = "To foster innovation in Science and Technology through the development of people." , established = 1959 , type = Public ( National) , president ...

. * Princess Maha Chakri Sirindhorn Natural History Museum,

natural history museum A natural history museum or museum of natural history is a scientific institution with natural history collections that include current and historical records of animals, plants, fungi, ecosystems, geology, paleontology, climatology, and more. ...

, Faculty of Science,

Prince of Songkla University Prince of Songkla University (PSU) ( th, มหาวิทยาลัยสงขลานครินทร์; ) is the first university in southern Thailand, established in 1967. The name of the university was granted by the King Bhumibol ...

, Hat Yai Campus, Hat Yai, Songkhla Province.
Sirindhorn Observatory

Doi Suthep Doi Suthep (ดอยสุเทพ), is a mountain ("doi") west of Chiang Mai, Thailand. It is in elevation and is one of the twin peaks of a granite mountain. The other peak is known as Doi Pui and is slightly higher (). Doi Suthep is from ...

Chiang Mai Province Chiang Mai ( th, เชียงใหม่, ; nod, , ) is the largest Province (''changwat'') of Thailand. It lies in upper northern Thailand and has a population of 1.78 million people. It is bordered by Chiang Rai to the northeast, Lam ...

.
Princess Sirindhorn Neutron Monitor
a

Galactic cosmic ray Cosmic rays are high-energy particles or clusters of particles (primarily represented by protons or atomic nuclei) that move through space at nearly the speed of light. They originate from the Sun, from outside of the Solar System in our own ...

detector at

Thailand Thailand ( ), historically known as Siam () and officially the Kingdom of Thailand, is a country in Southeast Asia, located at the centre of the Indochinese Peninsula, spanning , with a population of almost 70 million. The country is b ...

's highest mountain,

Doi Inthanon Doi Inthanon ( th, ดอยอินทนนท์, ) is the highest mountain in Thailand. It is in Chom Thong District, Chiang Mai Province. This mountain is an ultra prominent peak, known in the past as ''Doi Luang'' ('big mountain') or '' ...

.
Princess Maha Chakri Sirindhorn Medical Center

, Onkarak Campus, Nakhon Nayok Province

Foreign

* Sirindhorn Technology and Culture Exchange Center, Peking University,

Haidian District Haidian District () is a district of the municipality of Beijing. It is mostly situated in northwestern Beijing, but also to a lesser extent in the west, where it has borders with Xicheng District and Fengtai District. It is 431 square km in ar ...

Beijing } Beijing ( ; ; ), alternatively romanized as Peking ( ), is the capital of the People's Republic of China. It is the center of power and development of the country. Beijing is the world's most populous national capital city, with over 21 ...

, China.
Mianyang Xianfenglu Sirindhorn Primary School

Mianyang Mianyang (; formerly known as Mienchow) is the second largest prefecture-level city of Sichuan province in Southwest China. Located in north-central Sichuan covering an area of consisting of Jiangyou, a county-level city, five counties, and thr ...

Sichuan Sichuan (; zh, c=, labels=no, ; zh, p=Sìchuān; alternatively romanized as Szechuan or Szechwan; formerly also referred to as "West China" or "Western China" by Protestant missions) is a province in Southwest China occupying most of the ...

, China.

Places

* Sirindhorn MRT station of the Bangkok MRT Blue Line * Amphoe Sirindhorn of Ubon Ratchathani Province *

Sirindhorn Dam The Sirindhorn Dam is in Sirindhorn District, Ubon Ratchatani, Thailand. It impounds the Lam Dom Noi River, and its reservoir is the province's largest water resource. The dam was commissioned in 1971 to serve as a hydropower facility as well a ...

stops the

Dom Noi River Lam Dom Noi ( th, ลำโดมน้อย, ) is a tributary of the Mun River. It originates in the Dongrek mountains and flows northwards. The watercourse passes Buntharik District and is stopped by the Sirindhorn Dam The Sirindhorn Dam i ...

in Sirindhorn, Ubon Ratchathani Province.
Sirindhorn Museum
(Phu Kum Khao Dinosaur Museum), Phu Kum Khao Dinosaur Research Center, Sahatsakhan,

Kalasin Province Kalasin ( th, กาฬสินธุ์, ) is one of Thailand's seventy-six provinces (''changwat''), located in upper northeastern Thailand, also called Isan. The province was established by the Act Establishing Changwat Kalasin, BE 2490 (194 ...

. * Sirindhorn Observatory, Department of Physics, Faculty of Science,

* Princess Sirindhorn Stadium, is a sports stadium in

Si Racha Si Racha ( th, ศรีราชา, ) is a subdistrict and town in Thailand on the east coast of the Gulf of Thailand, about 120 km southeast of Bangkok in Si Racha district, Chonburi province. Si Racha is known as the provenance of the po ...

Chonburi Province Chonburi (, , ) is a province of Thailand (''changwat'') located in eastern Thailand. Its capital is also named Chonburi. Neighbouring provinces are (clockwise from north) Chachoengsao, Chanthaburi, and Rayong, while the Bay of Bangkok is to ...

Fauna

Several fauna species are named after her, including: * '' Eurochelidon sirintarae'' (Princess Sirindhorn bird or

white-eyed river martin The white-eyed river martin (''Pseudochelidon sirintarae'') is a passerine bird, one of only two members of the river martin subfamily of the swallows. Since it has significant differences from its closest relative, the African river martin, it ...

), a critically endangered

swallow The swallows, martins, and saw-wings, or Hirundinidae, are a family of passerine songbirds found around the world on all continents, including occasionally in Antarctica. Highly adapted to aerial feeding, they have a distinctive appearance. The ...

first described in 1968. * ''Phricotelphusa sirindhorn'' (panda crab). It was described in ''

Crustaceana ''Crustaceana'' is a peer-reviewed scientific journal specialising in carcinology. It was established in 1960 and is published monthly by Brill Publishers. The journal is abstracted and indexed by BIOSIS Previews, the Science Citation Index, Th ...

'' in 1989. * '' Phuwiangosaurus sirindhornae'', a sauropod herbivore

dinosaur Dinosaurs are a diverse group of reptiles of the clade Dinosauria. They first appeared during the Triassic period, between 243 and 233.23 million years ago (mya), although the exact origin and timing of the evolution of dinosaurs is t ...

from the Early

Cretaceous The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of ...

period. It was described in 1994. * '' Sirindhorna khoratensis'', a hadrosauroid dinosaur from the Early Cretaceous. It was described in 2015. * '' Acanthosquilla sirindhorn'' (panda mantis shrimp). It was described in ''Crustaceana'' in 1995. * ''

Tarsius sirindhornae ''Tarsius'' is a genus of tarsiers, small primates native to islands of Southeast Asia. Until 2010, all tarsier species were typically assigned to this genus, but a revision of the family Tarsiidae restored the generic status of ''Cephalopachus' ...

'', an ancient primate. * '' Streptocephalus sirindhornae'', a freshwater

fairy shrimp Anostraca is one of the four orders of crustaceans in the class Branchiopoda; its members are referred to as fairy shrimp. They live in vernal pools and hypersaline lakes across the world, and they have even been found in deserts, ice-covered mo ...

. It was described in the '' Journal of Crustacean Biology'' in 2000. * ''

Macrobrachium ''Macrobrachium'' is a genus of freshwater prawns or shrimps characterised by the extreme enlargement of the second pair of pereiopods, at least in the male. Species It contains these species: *'' Macrobrachium acanthochirus'' F. Villalobo ...

sirindhorn'', a freshwater

prawn Prawn is a common name for small aquatic crustaceans with an exoskeleton and ten legs (which is a member of the order decapoda), some of which can be eaten. The term "prawn"Mortenson, Philip B (2010''This is not a weasel: a close look at nature' ...

. It was described in ''Crustaceana'' in 2001. * ''

Trigona ''Trigona'' is one of the largest genera of stingless bees, comprising about 32 species, exclusively occurring in the New World, and formerly including many more subgenera than the present assemblage; many of these former subgenera have been el ...

sirindhornae'', a bee. * ''Sirindhorn thailandiensis'' (princess

moth Moths are a paraphyletic group of insects that includes all members of the order Lepidoptera that are not butterflies, with moths making up the vast majority of the order. There are thought to be approximately 160,000 species of moth, many of w ...

). * ''Loxosomatoides sirindhornae'', a freshwater kamptozoan. It was described in '' Hydrobiologia'' in 2005.

Flora

Numerous plant species have been named after her: * '' Sirindhornia''

spp. In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate se ...

orchid Orchids are plants that belong to the family Orchidaceae (), a diverse and widespread group of flowering plants with blooms that are often colourful and fragrant. Along with the Asteraceae, they are one of the two largest families of flowerin ...

s: ** '' Sirindhornia pulchella'' can only be seen in Doi Chiang Dao National Park, blooming from April to June. ** ''Sirindhornia mirabilis'' can only be seen in Doi Hua Mot in

Tak Province Tak ( th, ตาก, , Burmese: တာ့ခ် pronounced ak is one of Thailand's seventy-seven provinces (''changwat'') and lies in lower northern Thailand. Neighbouring provinces are (from north clockwise) Mae Hong Son, Chiang Mai, Lamphun, ...

, blooming during May and June. ** ''Sirindhornia monophyla'' can be seen in Doi Hua Mot in

from March to June, as well in

Myanmar Myanmar, ; UK pronunciations: US pronunciations incl. . Note: Wikipedia's IPA conventions require indicating /r/ even in British English although only some British English speakers pronounce r at the end of syllables. As John Wells explai ...

and China. * Other plant species include: ** ''

Bauhinia ''Bauhinia'' () is a large genus of flowering plants in the subfamily Cercidoideae and tribe Bauhinieae, in the large flowering plant family Fabaceae, with a pantropical distribution. The genus was named after the Bauhin brothers Gaspard and J ...

sirindhorniae'' (''sam sip song pra dong''), a vine of the pea family. It was described in the ''

Nordic Journal of Botany The ''Nordic Journal of Botany'' is a bimonthly Peer review, peer-reviewed scientific journal of botany, including the Taxonomy (biology), taxonomy, evolution, Wildlife conservation, conservation, and biogeography of plants, algae, bryophytes, and ...

'' in 1997. ** ''Magnolia sirindhorniae'' (Princess Sirindhorn's

magnolia ''Magnolia'' is a large genus of about 210 to 340The number of species in the genus ''Magnolia'' depends on the taxonomic view that one takes up. Recent molecular and morphological research shows that former genera ''Talauma'', ''Dugandiodendro ...

) ** '' Thepparatia scandens'' Phuph. or ''Khruea thepparat

malvaceae Malvaceae, or the mallows, is a family of flowering plants estimated to contain 244 genera with 4225 known species. Well-known members of economic importance include okra, cotton, cacao and durian. There are also some genera containing familiar ...

''. Thepparat is a part of her

royal title Traditional rank amongst European royalty, peers, and nobility is rooted in Late Antiquity and the Middle Ages. Although they vary over time and among geographic regions (for example, one region's prince might be equal to another's grand duke ...

. It was described in the ''Thai Forest Bulletin (Botany)'' in 2006. ** '' Impatiens sirindhorniae'' Triboun & Suksathan, 2009. It was described in ''Gardens' Bulletin Singapore''.

Notes

References

External links

Her Royal Highness Princess Maha Chakri Sirindhorn’s Personal Affairs Division
*

, at Kanchanapisek Network

The Forest Herbarium

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