Nobuhide SAKUMA was one of his children, and Moritsugu SAKUMA (father of Morimasa SAKUMA, Katsumasa SHIBATA, and Katsuyuki SAKUMA) was one of his cousins.
子に佐久間信栄、従兄弟に佐久間盛次（佐久間盛政、佐久間安政、柴田勝政、佐久間勝之の父）がいる。