Background
Tomosada Uesugi was born in 1525 in Japan. He was the eldest legitimate son of Uesugi Tomooki.
朝定 上杉
Tomosada Uesugi was born in 1525 in Japan. He was the eldest legitimate son of Uesugi Tomooki.
Following his father's death in 1537, though he was still a child, Tomosada led an attack on the Later Hojo clan in the Tachibana district of Musashi province. He established himself in the temple of Kandai-ji, which he fortified as a castle. Hojo Ujitsuna took Kawagoe castle soon afterwards from Tomosada's uncle, Uesugi Tomonari, however.
In the 1545 battle of Kawagoe, Tomosada allied itself with Ashikaga Haruuji and Uesugi Norimasa of Yamauchi against Hojo Ujiyasu. He was killed in battle, and the attempt to regain the castle for the Uesugi was ultimately unsuccessful.