Soun had been depicted as a samurai who had abandoned the corrupt government in Kyoto for the Kanto area; however, a recent study by Junji IENAGA reveals that he acted in collaboration with the central government.
政治が腐敗した京を捨てて、関東の沃野に志を立てたように描かれてきた早雲だが、中央の政治と連動した動きを取っていることが近年になって家永遵嗣などの研究で分ってきた。