Yūki Tomomitsu

Yūki Tomomitsu (1168–1254), third son of Shimotsuke chieftain Oyama Masamitsu, founded the Shimōsa Yūki clan. In 1180 his mother presented him to Minamoto no Yoritomo, who presided over his coming-of-age. He fought at Uji in 1184 and Dannoura in 1185, and in the 1189 Ōshū campaign slew enemy general Hidetsuna at Atsukashiyama, winning the three districts of Shirakawa.

In 1199 he led sixty-six gokenin in the petition overthrowing Kajiwara no Kagetoki, commanded in the 1221 Jōkyū War, and joined the shogunate Council of State in 1235, later taking vows.