Emperor Go-Toba was what head of the Imperial Family in Japan?
Emperor Go-Toba: Emperor Go-Toba (後鳥羽天皇 , Go-Toba-tennō ) (August 6, 1180 – March 28, 1239) was the 82nd emperor of Japan, according to the traditional order of succession. Emperor of Japan: The Emperor of Japan is the head of the Imperial Family and the traditional head of state of Japan.
Emperor of Japan