Besides Kagehiro, he also had another child 'Takahiro KITAJO' having the same name as his own--It is said that Takahiro (the junior) returned to service of the Uesugi clan but failed in regaining the territory lost in Echigo and fell.
なお、子には景広の他にも同名の｢北条高広｣がおり、彼は上杉氏に帰参したものの越後の所領を取り戻すことはできず没落したという。