 Hideyoshi (1112–1184), descendant of Minamoto no Nariyori, lost his parents young and became an orphan.He was adopted by Minamoto no Tameyoshi (then head of the Seiwa Genji).He participated to the Hōgen war (1156) in which his father Minamoto no Tameyoshi was killed, and the Heiji war (1159) with his (adoptive) uncles, brothers, nephews, cousins and clansmen.