The Kasuya clan existed from the Kamakura period and was a military family based at Kakogawajo Castle in Harima Province; Takenori KASUYA was the second son of Tadayasu KASUYA, a retainer of the Bessho clan in Harima Province.
糟屋氏は播磨加古川城を拠点に鎌倉時代から続く武家で、播磨国にて別所氏の家臣であった糟屋忠安の次男。