The period of insei by Goshirakawa was the age in which the samurai quickly rose to power, as can be seen in the Heiji Rebellion, the entry and fall of the government by TAIRA no Kiyomori, the occurrence of Jisho Jyuei Rebellion and the establishment of Kamakura Bakufu by MINAMOTO no Yoritomo, etc.
後白河院政期には、平治の乱と平清盛政権の登場およびその崩壊、治承・寿永の内乱の勃発、源頼朝の鎌倉幕府成立など、武士が一気に台頭する時代となった。