Tokusō
Tokusō (Japanese: 得宗) was the title (post) held by the head of the mainline Hōjō clan, who also monopolized the position of shikken (regents to the shogunate) of the Kamakura shogunate in Japan during the period of Regent Rule (1199–1333). It’s important not to confuse a regent of the shogunate with a regent of the Emperor (the latter are called Sesshō and Kampaku). Shikkens were the first regents to the shogunate.
The tokusō from 1256 to 1333 was the military dictator of Japan as de facto head of the bakufu (shogunate); despite the actual shōgun being merely a puppet. This implies that all other positions in Japan—the Emperor, the Imperial Court, Sesshō and Kampaku, and the shikken (regent of the shōgun)—had also been reduced to figureheads.