When Chikafusa became a priest to take responsibility for the death of Imperial Prince Yoyoshi, Tomoyuki became a guardian of Akiie KITABATAKE who succeeded the head family at a young age.
また、親房が世良親王急死の責任を取って出家すると、宗家は幼少の北畠顕家が継いだために、具行はその後見人となった。