In 1219, MINAMOTO no Sanetomo, the third shogun, was assassinated by Kugyo as he visited Tsurugaoka Hachiman-gu Shrine to make greetings in return for the conferment of court rank, and this resulted in extinction of the lineal descent of the Minamoto clan.
承久元年（1219年）、鶴岡八幡宮拝賀の際に3代将軍・源実朝が公暁によって暗殺され、源氏の正統が断絶した。