It is written in the "Satsukaiki (薩戎記)"records that Mochikiyo's uncle, Takakazu KYOGOKU, became heir to the family estate, and in the "Seisanfushi" notes it is written that Mochikiyo became the heir.
薩戎記はこの後に叔父の京極高数が家督を継いだとし、西讃府史は持清が家督を継いだとしている。