It could be argued that Go-Shirakawa himself further increased Kiyomori's power even after their relationship fell apart. He deposed his son Rokujō in 1168 and elevated Takakura to the imperial throne. Takakura was the son of Kiyomori's sister-in-law, and so he attained a familial link to the imperial clan in a manner not dissimilar to that of the Fujiwara. Indeed, Kiyomori could have seized the power of Regent and Go-Shirakawa would have been powerless to stop him, due to this marital link.