When the Kawachi-Genji advanced eastward, MINAMOTO no Yoriyoshi founded Tsurugaoka-wakamiya Shrine in Kamakura as a branch shrine of Tsuboi Hachiman-gu Shrine, and this was the precursor of Tsurugaoka Hachiman-gu Shrine.
河内源氏の東国進出の際、源頼義が壺井八幡宮を鎌倉に分社したのが鶴岡若宮で、鶴岡八幡宮の前身である。