After suppressing the rebellion by MINAMOTO no Yoshichika, Tadamori became inshi (official of the Retired Emperor's Office), was appointed to shoshii, the highest rank for military aristocrats, and gained power as the leader of samurai families.
忠盛は源義親の乱を平定するなどして院司となり、正四位に叙せられて軍事貴族の最高位者、すなわち武家の棟梁として台頭していった。