Note that Yoritsune KUJO was appointed to be the 4th Shogun since he was a great-grandson of Yoshiyasu"s wife, who was Yoritomo's sister born to the same mother.
なお、4代将軍九条頼経は頼朝の同母姉妹である彼の妻の曾孫であることを理由に将軍に据えられている。