Yoshikane's descendants became gokenin (shogunal vassals) in the Kamakura bakufu (Japanese feudal government headed by a shogun), surviving as the Ishikawa-Genji (Minamoto clan) into the period of the Northern and Southern Courts (Japan), and thereafter continued his line under the name of the Ishikawa clan.
義兼の子孫は、鎌倉幕府の御家人となり、南北朝時代(日本)には石川源氏として存在し、その子孫は石川氏として存続する。