was a Japanese ''

daimyō were powerful Japanese magnates, feudal lords who, from the 10th century to the early Meiji era, Meiji period in the middle 19th century, ruled most of Japan from their vast, hereditary land holdings. They were subordinate to the shogun and n ...

'' of the

Sengoku period The was a period in History of Japan, Japanese history of near-constant civil war and social upheaval from 1467 to 1615. The Sengoku period was initiated by the Ōnin War in 1467 which collapsed the Feudalism, feudal system of Japan under the ...

. "Date Terumune" at ''The Japan Biographical Encyclopedia & Who's Who'', Issue 3 (1964), p. 121
Harumune was the fifteenth head of the

Date Clan The is a Japanese samurai kin group. Papinot, Jacques Edmond Joseph. (1906). ''Dictionnaire d’histoire et de géographie du Japon''; Papinot, (2003)"Date", ''Nobiliare du Japon'', p. 5 retrieved 2013-5-5. History The Date family was founded ...

. He was the father of the sixteenth head,

Date Terumune was a Japanese samurai clan leader of the Sengoku period. Turnbull, Stephen. (2012) ''Samurai Commanders: 1577-1638,'' Vol, 2, p. 52 He had close relationship with Oda Nobunaga, one of the leading figures of the period. Terumune was the father o ...

, and the grandfather of the famous seventeenth head of the Date Clan and founder of the Sendai Clan as well as Sendai City in

Miyagi Prefecture is a prefecture of Japan located in the Tōhoku region of Honshu. Miyagi Prefecture has a population of 2,305,596 (1 June 2019) and has a geographic area of . Miyagi Prefecture borders Iwate Prefecture to the north, Akita Prefecture to the nort ...

Date Masamune was a regional ruler of Japan's Azuchi–Momoyama period through early Edo period. Heir to a long line of powerful ''daimyō'' in the Tōhoku region, he went on to found the modern-day city of Sendai. An outstanding tactician, he was made all ...

Biography

A son of

Date Tanemune was a Japanese samurai warrior and Date clan leader during the Sengoku period. Biography He was born as the eldest son of Date Hisamune. His childhood name was Jiro (次郎). At the death of his father, he became ''daimyō'' of Mutsu Provinc ...

, the fourteenth hereditary head of the

Mutsu Province was an old province of Japan in the area of Fukushima, Miyagi, Iwate and Aomori Prefectures and the municipalities of Kazuno and Kosaka in Akita Prefecture. Mutsu Province is also known as or . The term is often used to refer to the comb ...

. Harumune's childhood name was Jiro (次郎). Harumune was intended to become head of the clan upon his father's death. However, Tanemune's method of consolidating power through the political marriages of his children led to the

Tenbun War , also known as Tenmon, was a after '' Kyōroku'' and before '' Kōji''. This period spanned from July 1532 through October 1555. The reigning emperor was . Change of era * 1532 : At the request of Ashikaga Yoshiharu, the 12th ''shōgun'' of the ...

(天分の乱), a revolt led by Harumune. At first, Tanemune had the advantage but Harumune ultimately succeeded his father as leader of the clan. Harumune then moved to

Yonezawa Yonezawa City Hall is a city in Yamagata Prefecture, Japan. , the city had an estimated population of 81,707 in 33,278 households, and a population density of 150 persons per km2. The total area of the city is . Yonezawa is most famous for ...

and worked to settle the aftermath of the war. As a special honor,

Ashikaga Yoshiharu was the twelfth ''shōgun'' of the Ashikaga shogunate from 1521 through 1546 during the late Muromachi period of Japan.Ackroyd, Joyce. (1982). ''Lessons from History: The Tokushi Yoron'', p. 332. He was the son of the eleventh ''shōgun'' Ash ...

gave permission for Harumune to use one

ideograph An ideogram or ideograph (from Greek "idea" and "to write") is a graphic symbol that represents an idea or concept, independent of any particular language, and specific words or phrases. Some ideograms are comprehensible only by familiarit ...

(''haru-'') of his name. Brinkley, Frank. (1915)
''A History of the Japanese People from the Earliest Times to the End of the Meiji Era'', p. 471
Additionally, the

Ashikaga shogunate The , also known as the , was the feudal military government of Japan during the Muromachi period from 1336 to 1573.Nussbaum, Louis-Frédéric. (2005)"''Muromachi-jidai''"in ''Japan Encyclopedia'', p. 669. The Ashikaga shogunate was establ ...

gave Harumune power and responsibilities as ''

tendai , also known as the Tendai Lotus School (天台法華宗 ''Tendai hokke shū,'' sometimes just "''hokke shū''") is a Mahāyāna Buddhist tradition (with significant esoteric elements) officially established in Japan in 806 by the Japanese m ...

'' of Mutsu.

Family

* Father:

* Mother: Teishin'in * Wife: Kubohime (1521–1594) * Children: ** Iwaki Chikataka (d. 1594) by Kubohime **

Onamihime Onamihime (阿南姫, July 4, 1541 – August 30, 1602) was a late-Sengoku period Onna-musha. She was the first daughter of Date Harumune, sister of Date Terumune and aunt of Date Masamune. She was the ruler of Sukagawa castle in Mutsu Province. ...

(1541–1602) married Nikaido Moriyoshi by Kubohime **

by Kubohime ** daughter married

Date Sanemoto was a Japanese samurai and commander of the Sengoku period. He was the third son of Date Tanemune His son Date Shigezane was also an important vassal of the Date clan. Date Tanemune tried to adopt him to the Uesugi clan The is a Japanese s ...

(brother of Harumune) by Kubohime ** daughter married

Koyanagawa Morimune Koyanagawa Morimune (小梁川盛宗, 1440 - November 19, 1500) was a samurai during the Muromachi period. He is the founder of the Koyanagawa clan, a branch of the Date clan. Life Date Morimune was born in 1440 as the third son of Date Mochi ...

by Kubohime ** daughter married

Satake Yoshishige was a Japanese ''daimyō'' of the Sengoku period. He was the 18th generation head of the Satake clan. He was renowned for his ferocity in battle; he was also known by the nickname of . Biography Yoshishige (whose rank was Hitachi no suke) was t ...

by Kubohime **

Rusu Masakage was a Japanese samurai of the Sengoku period through Azuchi-Momoyama period. Served as a retainer of the Date clan Masakage was the uncle of the famous Date Masamune.

by Kubohime **

Ishikawa Akimitsu , also known as Jirō (次郎) or by his court title, Yamato no Kami (大和守), was a Japanese samurai of the Sengoku period through early Edo period. He served the Date clan of Sendai han during the tenure of its lord Masamune. Akimitsu was born ...

by Kubohime ** Hikohime married Ashina Morioki later married

Ashina Moritaka Ashina may refer to: *Ashina tribe, a ruling dynasty of the Turkic Khaganate *Ashina clan (Japan),_one_of_the_Japanese_clans *Ashina_District,_Hiroshima.html" ;"title="DF 7 of 80; retrieved 2013-5- ..., one of the Japanese clans *Ashina District, Hi ...

by Kubohime **

Kokubu Morishige was a Japanese samurai of the Sengoku through early Edo period. He was a fifth son of Date Harumune. Morishige, also known by his court title '' Noto no Kami'' 能登守, was the uncle of Date Masamune. He was also the last lord of Matsumori Cas ...

by Kubohime ** Sugime Naomune (d. 1584) by Kubohime

Retainers

References

Daimyo 1519 births 1578 deaths Date clan People from Sendai {{daimyo-stub