Mizuno clan
Nagatomi was married to a granddaughter of Arima Yoritaka of Kurume Domain. His seventh son was adopted into the Inaba clan, becoming Inaba Masakuni, "daimyō" of Yodo Domain and a member of the "rōjū" council. His either son was likewise adopted into the Mizuno clan, becoming Mizuno Katsutomo "daimyō" of Yūki Domain, while one of his daughters became the official wife of Tokugawa Yoshikatsu of Owari Domain, and another married Tokugawa Mochinaga, head of the Hitotsubashi Tokugawa