Seiwa had six sons who bore the surname Minamoto - a name granted as an honor by the Imperial court. The Seiwa Genji - including first [[Kamakura shogunate|Kamakura shogun]] [[Minamoto no Yoritomo]] and his brother, the famous [[Minamoto no Yoshitsune]] - claimed descent from Seiwa's sixth son, [[Minamoto no Sadazumi]], through Sadazumi's son [[Minamoto no Tsunemoto]]. | Seiwa had six sons who bore the surname Minamoto - a name granted as an honor by the Imperial court. The Seiwa Genji - including first [[Kamakura shogunate|Kamakura shogun]] [[Minamoto no Yoritomo]] and his brother, the famous [[Minamoto no Yoshitsune]] - claimed descent from Seiwa's sixth son, [[Minamoto no Sadazumi]], through Sadazumi's son [[Minamoto no Tsunemoto]]. |