His wife was a daughter of Munenaga NAKAMURA and the couple had three sons, Tanemitsu, Inshi, and Sadamitsu, and two daughters who became the wives of Choin TAKEISHI and Hidekuni KOIZUMI, respectively.
中村宗長の女を娶って子が5人あり、男子が3人で国分胤光、胤嗣、定光、女子が2人で武石朝胤と小泉秀国に嫁いだ。