In the same year, Shigeyoshi married Kamadohime, a daughter of Narinao NABESHIMA, the lord of the Saga Domain, and consequently became a brother-in-law of Naomasa NABESHIMA.
この年、佐賀藩主鍋島斉直の娘竈姫と結婚し、茂義は鍋島直正の義理の兄となった。