Minamoto no Tametomo

Minamoto no Tametomo (1139–1170), called Chinzei Hachiro, was the eighth son of Minamoto no Tameyoshi and uncle of Yoritomo. The Hogen Monogatari relates that he was banished to Kyushu in his youth and subdued the region, taking the name Chinzei Hachiro.

In the Hogen Disturbance of 1156 he fought for Retired Emperor Sutoku against his brother Yoshitomo; the tale says that after the defeat his bow arm was crippled and he was exiled to Oshima. The tale also relates that he mastered the Izu Islands and killed himself when a punitive force arrived in 1170, in an early account of seppuku.