The Yokose clan, who changed its family name to the Yura clan, is assumed to be descended from Sadauji YOKOSE, a Yoshimune NITTA's child, which would have little credibility without any specific evidence.
横瀬氏は名字を由良氏と改め、新田義宗の子・横瀬貞氏の子孫とされているが、これといった確証がなく信憑性は薄いという。