In January, 1181, Yoritomo's Gosho (Imperial Palace) was established in Okura, Kamakura and at the opening ceremony, Yoshimori was standing in front of other Gokenin (retainers).
12月、鎌倉大倉の地に頼朝の御所が完成し、その入御の儀式に際し、義盛は居並ぶ御家人の最前に立った。