Hisamasa persistently showed a subordinate posture to the Rokkaku clan by taking in part of Yoshikata ROKKAKU's name, "taka (賢)," into his heir's name as "Takamasa (賢政)," in addition to his marriage with a daughter of Sadatake HIRAI, a vassal of the Rokkaku clan.
嫡男に六角義賢の一字　賢の字を偏諱として受けさせ、「賢政」と名乗らせたりその妻に六角氏家臣平井定武の娘を娶らせるなど、六角氏に対しては徹底した従属的姿勢をとった。