Taira no Masamori
Taira no Masamori was a late-Heian warrior and head of the Ise Taira, son of Taira no Masahira and grandfather of Taira no Kiyomori. He rose under Retired Emperor Shirakawa as a palace guard.
In 1108 he crushed Minamoto no Yoshichika's rebellion in Izumo and received Tajima as his reward, though contemporaries doubted he had killed the famed rebel. He suppressed pirates in 1114 and a rebel magnate in Hizen in 1119, spreading Taira power across the western seas, and died around 1121.