The Tsuchimikado family ultimately became extinct because of an imperial decision made by Emperor Gohanazono, all of the six territories were confiscated and one of them was given to the child of Aritoyo KARAHASHI while the remaining five territories were divided among various families such as Matsunoki and Yotsutsuji (whose territory was subsequently exchanged with that of the Toin family) (as recorded in "Kennaiki" on July 7, October 2 and 12, 1441).
最終的には後花園天皇の勅裁によって6ヶ所の所領全てを没収され、1ヶ所は唐橋在豊の子に与えられ、残り5ヶ所は松木家・四辻家（ただし、洞院家と所領交換される）などに5分割に処せられて断絶させられた（『建内記』嘉吉元年7月7日西暦1441年8月2日・10月2日西暦1441年11月24日12日1441年12月4日条）。