It is said that the Watanabe clan, the vassal of the Toyotomi clan, and the Watanabe clan, the daimyo in hereditary vassal to the Tokugawa family, are also the descendants of MINAMOTO no Tsuna.
豊臣氏家臣の渡辺氏や徳川氏譜代の渡辺氏もまた子孫と伝える。