Subsequently, it appears he was welcomed as a miyashogun (shogun from the Imperial Court) from the Imperial families, so the precedent that one could not become a shogun unless of the Minamoto clan stock was overturned at the behest of the Kamakura bakufu itself.
後に皇族から宮将軍が招かれたように、源氏でなければ将軍になれないという慣例は鎌倉幕府自身によって否定されている。