Tachibana clan (kuge)
Tachibana clan was one of the four most powerful kuge families in Japan's Nara and early Heian periods. Members of the Tachibana family often held high court posts within the Daijō-kan, most frequently Sadaijin. Like the other major families at court, they also constantly sought to increase and secure their power by marrying into the imperial family. However, as the Fujiwara clan gained power over the course of the 9th and 10th centuries, the Tachibana were eclipsed and eventually became scattered across the country. Though serving in high government posts outside the capital, they were thus denied the degree of power and influence within the court at Kyoto which they once enjoyed.
The name of Tachibana was bestowed on Agata-no-Inukai no Michiyo by Empress Genmei in 708. She was the wife of Prince Minu, a descendant of Emperor Bidatsu and mothered Princes Katsuragi and Sai. She later married Fujiwara no Fuhito and bore Kōmyōshi. In 736, Princes Katsuragi and Sai were given the surname Tachibana, renouncing their imperial family membership. They became Tachibana no Moroe and Tachibana no Sai respectively.
Over the course of the Heian period, they engaged in countless struggles with the Fujiwara family for domination of court politics, and thus essentially for control of the nation; on a number of occasions this developed into outright violent conflict. One of these conflicts was the uprising of Fujiwara no Sumitomo in 939–941. Though the rebellion was ultimately suppressed, the Tachibana family was scattered in the process, and lost much of its power.
Another branch family developed in Iyo Province, becoming known as the Iyo Tachibana family. Tachibana Tōyasu, who executed Fujiwara no Sumitomo, was the progenitor of this branch; Kusunoki Masashige, a celebrated pro-Imperial commander of the 14th century, claimed descent from Tōyasu.
Significant members
- Agatainukai no Michiyo
- Tachibana no Moroe - Son of Michiyo; also known as Katsuragi no Ō-kimi
- Tachibana no Sai - Son of Michiyo; also known as Sai no Ō-kimi
- Muro no Ōkimi - Daughter of Michiyo; wife of Fujiwara no Fusasaki
- Tachibana no Naramaro - Eldest son of Moroe
- Tachibana no Shimadamaro - Son of Naramaro
- Tachibana no Kiyotomo - Son of Naramaro
- Tachibana no Kachiko - Daughter of Kiyotomo, Empress to Emperor Saga
- Tachibana no Ujikimi - Son of Kiyotomo
- 橘岑継 - Son of Ujikimi
- Tachibana no Hayanari - Poet, calligrapher; one of the Sanpitsu
- Tachibana no Hiromi - Scholar, five generations from Moroe; Served Emperors Yōzei, Kōkō, and Uda
- Tachibana no Kimisai - Second son of Hiromi
- Tachibana no Kimiyori - Fifth son of Hiromi; Dazai Gonnosochi ; fought Fujiwara no Sumitomo's younger brother Fujiwara no Suminori
- Tachibana no Kern - Member of the Saga Morimoto line of the Ochi clan
- Tachibana no Toshimichi - Third son of Kimiyori; played an important role in fighting Fujiwara no Sumitomo and Suminori; lord of Chikugo province and founder of the Chikugo branch of the Tachibana
- Senkan - Fourth son of Kimiyori; preacher of Jodo Shu
- Tachibana no Yoshiyuki - Also known by the Buddhist name Shōkū; founder of Enkyō-ji
- Zōga - Lived on Tōnomine
- Kōkei - Priest of Esoteric Buddhism
- Tachibana no Nagayasu - Poet; also known by Buddhist name Nōin
- Tachibana no Michisada - worked with Fujiwara no Michinaga
- Ko-shikibu no Naishi - Poet; daughter of Michisada
- Tachibana no Tamenaka - Poet
- Tachibana no Tōyasu - Formerly of the Ochi clan, founder of the Iyo Tachibana branch; played an important role in fighting Fujiwara no Sumitomo
- Tachibana no Isamu - medicine, son of Sachiko
- Tachibana no Tōshige - mokudai of Suruga; descendant of Tōyasu
- Tachibana no Kiminaga - executioner of Taira no Munemori
- Tachibana no Kiminari - Son of Kiminaga; founder of Kokajima clan
- Tachibana no Narisue - Served Kujō Michiie
- Minamoto no Hisanao - Member of the Saga Genji line of the Minamoto clan; founder of Kamachi family from the Chikugo Tachibana branch