As shown above, the Taira clan administration was established in the latter half of the 1160s due to increased influence of military force in the political scene, strong collaboration between Goshirakawa and Kiyomori, the relationship between Goshirakawa and Shigeko, Takakura's ascension, Kiyomori's support of the Daijin, substantial financial power based on Japan-Song trade and accumulated properties (shoen), and military power based on the western bushi and the Seto Inland Sea naval force.
以上に見るように、政治世界における武力が占める比重の増加、後白河と清盛の強い連携、後白河と滋子の関係、高倉の即位、清盛の大臣補任、日宋貿易や集積した所領（荘園）に基づく巨大な経済力、西国武士や瀬戸内海の水軍を中心とする軍事力などを背景として、1160年代後期に平氏政権が確立した。