He made Ujitaka HOJO, the fourth son of Ujitsuna HOJO, succeed Kozukue-jo Castle after Saburo (Kagetora) had been adopted by Kenshin UESUGI, and gave reigns of the family to his grandson Ujitaka HOJO, the son of Ujinobu (Tsunasige).
三郎（景虎）が越後の上杉謙信の養子となった後は、北条氏綱の四男・北条氏堯に小机城を継がせ、家督は氏信（綱重）の子で孫・北条氏隆に継がせた。