Although Masaharu was a senior vassal of the Hatakeyama family and a lord of Eboshigata-jo Castle, due to the fall of the Hatayama clan, he lost the Castle, which eventually led to his downfall.
正治は畠山家重臣で烏帽子形城城主であったが畠山氏没落に伴い、烏帽子形城を失い没落した。