Yūki Tomosuke

Yūki Tomosuke (1308–1336) was the sixth head of the Shimōsa Yūki clan, succeeding his father Sadahiro in 1309. As a Kamakura gokenin he first used the name Tomotaka, the character taka granted by Hōjō Takatoki, and served in the 1331 siege of Kasagi Castle under Ashikaga Takauji before turning against the Hōjō.

He then renamed himself Tomosuke, but the Kenmu government favored his Shirakawa kinsmen, so he joined Takauji's Northern Court. He fought at Hakone and Takenoshita in 1336, followed Takauji to Kyushu, and fell at Tatarahama.