A legend has been told among his descendants that his tomb is at the Genju-ji Temple in Nariwa, Bicchu Province (now Nariwa-cho, Takahashi City), which was founded by Chikashige's nephew Motochika for his father Iechika, but the head priest of the temple says that for Chikashige only a Buddhist mortuary tablet exists and no stone pagoda has been discovered.
なお、墓は甥・元親がその父・家親のために創建したと言われる備中成羽（現：高梁市成羽町）の源樹寺にあると従前子孫の間では言われてきたが、源樹寺の住職によれば親成については位牌のみで、石塔は発見できてないという。