He thus incorporated the powers of the two clans: the Kikkawa clan who held sway in the Provinces of Aki and Iwami and the Kobayakawa clan who were influential in the provinces of Aki, and Bingo and the Seto Inland Sea.
これにより安芸国・石見国に勢力を持つ吉川氏と、安芸国・備後国・瀬戸内海に勢力を持つ小早川氏、両家の勢力を取り込んだ。