The clan initially called themselves the Kose clan or the Aimi clan; at the Battle of Mt. Senjo, they rushed to the battlefield to support Emperor Godaigo, and later for the achievements in the battle, they were given Rinji (emperor's important document) and praised by the emperor.
当初は巨勢氏、相見氏ともいい、船上山合戦に馳せ参じた際、その戦功を称えられ後醍醐天皇より綸旨が与えられた。