The recent research shows that he was probably a busho (Japanese military commander) named Masayoshi ASARI (who was later called Gyuran ASARI) of the Asari clan of Hinai-gun (the present northern part of Akita Prefecture) in the Sengoku period.
最近の研究で戦国期比内郡（現秋田県北部）浅利氏一門の武将浅利政吉（あさりまさよし）（後に浅利牛蘭と呼称される人物）ではないかと考えられている。