There is a theory that Hideyoshi TOYOTOMI served Yoshihide ROKKAKU, who was Yoshisato's father (or brother), changed his name to Hideyoshi during a period of wandering, and was given Kataimina (a part of the name of a noble person).
豊臣秀吉は放浪時代、義郷の父（あるいは兄か）にあたる六角義秀の家臣となっており、片諱を与えられて秀吉と名乗ったという説がある。