The family's existence can be traced back at least to the period of the Northern and Southern Courts by the documents such as "Sonpi Bunmyaku" (a text compiled in the fourteenth century that records the lineages of the aristocracy).
(子孫は)少なくとも南北朝時代(日本)期までは続いていたことを『尊卑分脈』等で確認することができる。