Chikashige, as other warlords in the Sengoku period, seems to have associated himself well with people of culture, and Shuryo SAKUGEN (1501 - 1579), who was a priest of the Rinzaishu sect, gave Chikashige a calligraphy, which is owned by Kyoto National Museum.
親成は当時の戦国武将の例に漏れず、文化人との交流も盛んに行っていたようで、京都国立博物館には臨済僧の策彦周良（1501年-1579年）が親成に与えた墨蹟が収蔵されている。