Incidentally, the Isshiki clan families were scattered around the country, and in Kanto there existed the Satte Castellan Isshiki clan (a family of Osakane ISSHIKI, who was a grandchild of Naouji ISSHIKI) as a family of the Kamakura Kubo, and they served Koga Kubo till the end; moreover, the clan continued as the hatamoto (direct retainer of the shogun) and the domain of Mito during the Edo period.
なお、一色氏の一族は各地に点在しており、関東には鎌倉公方の御一家として幸手城主一色氏（一色直氏の孫の一色長兼の一族）がおり、古河公方の終焉まで仕え、江戸時代には旗本や水戸藩として続いた。