Taira no Tadamasa

Taira no Tadamasa (died 1156) was an Ise Taira warrior, younger brother of Tadamori and uncle of Taira no Kiyomori. He first served Retired Emperor Shirakawa, and in 1119 was appointed guardian of Prince Akihito, the future Emperor Sutoku.

Dismissed by Retired Emperor Toba in 1133, he became a retainer of Fujiwara no Yorinaga. In the Hōgen Disturbance of 1156 he fought for Retired Emperor Sutoku, holding the Shirakawa palace; defeated, he fled to Ise, surrendered to Kiyomori and was executed at Rokuhara.