There is an anecdote that Shigekatsu alone ran away leaving his wife and family in Hoshizaki-jo Castle and surrendered himself to Nobukatsu when Shigetaka OKADA, the former lord of Hoshizaki-jo Castle, was killed by Nobukatsu, and Yoshiatsu OKADA, a younger brother of Shigetaka, held up in the castle opposing Nobukatsu.
もとの星崎城主・岡田重孝が信雄に殺され、弟の岡田善同が信雄に叛旗を翻して籠城したとき、重勝は星崎城にあった夫人や家族を置き去りにして一人で城から逃走し、信雄に降伏したという逸話がある。