Phrachao Siribounyasan ( lo, ພຣະເຈົ້າສິຣິບຸນຍະສາຣ; th, พระเจ้าสิริบุญสาร; died November 1781), also known as Ong Boun (), Bunsan or Xaiya Setthathirath III, was the 3rd king of the

Kingdom of Vientiane Kingdom of Vientiane was formed in 1707 as a result of the split of the Kingdom of Lan Xang. The kingdom was a Burmese vassal from 1765 to 1824. It then became a Siamese vassal until 1828 when it was annexed by Siam. History In 1779, under ...

(r. 1767 to 1781). Ong Boun was the second son of

Setthathirath II Setthathirath II (died 1735), also called Ong Lo and Sai Ong Hue (also spelled Xai Ong Ve; lo, ໄຊອົງເວ້), grandson of the great ruler Suliyavongsa, was the king of the Lao Kingdom of Lān Xāng. In Vietnamese records, he was ca ...

. He was appointed the governor of

Xiangkhouang Xiangkhouang ( Lao: ຊຽງຂວາງ, meaning 'Horizontal City') is a province of Laos on the Xiangkhoang Plateau, in the nation's northeast. The province has the distinction of being the most heavily bombed place on Earth. The provinc ...

in 1735. In 1767, his elder brother Ong Long died without heir. With the help of

Phra Vo Phra () is a Thai term that may refer to: *''Phra'', a Thai-language term for Buddhist monk *''Phra'', a Thai-language term for priest *''Phra'', a Thai-language word used as a prefix denoting holy or royal status, including in Thai royal ranks ...

, Ong Boun crowned the new Vientiane king. At that time, Vientiane was a vassal state of

Burma 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 ...

. The Burmese King considered Lao kingdoms as his base to expand further east. So, King

Taksin King Taksin the Great ( th, สมเด็จพระเจ้าตากสินมหาราช, , ) or the King of Thonburi ( th, สมเด็จพระเจ้ากรุงธนบุรี, ; ; Teochew dialect, Teochew: Dên ...

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

decided to invade Lao kingdoms. In 1778, a Siamese army under Somdej Chao Phya Mahakasatsuek (later

Rama I Phra Phutthayotfa Chulalok Maharaj (, 20 March 1737 – 7 September 1809), personal name Thongduang (), also known as Rama I, was the founder of the Rattanakosin Kingdom and the first monarch of the reigning Chakri dynasty of Siam (now Tha ...

) invaded Vientiane. After a siege of four months, the capital was captured by Siam.Wyatt, p. 143 Ong Boun fled into jungle, finally, he decided to submit to the Siamese. Since then, Vientiane became Siamese dependency. Most of his children were taken to

Thonburi __NOTOC__ Thonburi ( th, ธนบุรี) is an area of modern Bangkok. During the era of the Kingdom of Ayutthaya, its location on the right (west) bank at the mouth of the Chao Phraya River had made it an important garrison town, which is ...

as hostages, including

Nanthasen Nanthasen (also spelled Nanthasan; lo, ພຣະເຈົ້ານັນທະເສນ, died 1795), also known as Chao Nan, was the 6th king of the Kingdom of Vientiane. He ruled from 1781 to 1795. Nanthasen was the eldest son of his father Ong ...

Inthavong Chao Inthavong ( lo, ເຈົ້າອິນທະວົງສ໌; th, เจ้าอินทวงศ์; died 7 February 1805), or known as his regnal name Xaiya Setthathirath III, was the 5th king of the Kingdom of Vientiane (r. 1795 to 1805 ...

Anouvong Chao Anouvong ( lo, ເຈົ້າອານຸວົງສ໌; th, เจ้าอนุวงศ์; ), or regnal name Xaiya Setthathirath V ( lo, ໄຊຍະເສດຖາທິຣາຊທີ່ຫ້າ; th, ไชยเชษฐาธ� ...

and

Khamwaen Princess Khamwaen or Concubine Waen ( th, เจ้าจอมแว่น) was a daughter of King Bunsan of Vientiane and a concubine (''Chao Chom'') to King Rama I of Bangkok. She was known for her prominent role in the Siamese court as a favori ...

. Khamwaen later became a concubine of Rama I.คึกฤทธิ์ ปราโมช, ม.ร.ว.. โครงกระดูกในตู้. กรุงเทพฯ : สำนักพิมพ์สยามรัฐ, พิมพ์ครั้งที่ 8 พ.ศ. 2547. However, Ong Boun revolted against Siam in 1780, he killed the Siamese appointed governor

Phraya Supho The Thai nobility was a social class comprising titled officials (''khunnang'', th, ขุนนาง) in the service of the monarchy. They formed part of a hierarchical social system which developed from the time of the Ayutthaya Kingdom (14th c ...

. In November 1781, he was captured by Siamese, and executed.

References

Biographies

* *
Siamese/Thai history and culture–Part 4
{{DEFAULTSORT:Ong Boun Kings of Vientiane 1781 deaths Year of birth unknown 18th century in Vientiane 18th-century monarchs in Asia Executed monarchs 18th-century Laotian people