At the Battle of Sekigahara, Tadaoki, his son and heir, fought in the front line against Mitsunari Ishida's army, and got a large fief of 399,000 koku in Kokura in Buzen Province, but Yusai spent the rest of his life in dignified retirement in Yoshida, Kyoto.
忠興は関ヶ原の戦いにおいて前線で石田三成の軍と戦い、戦後豊前国小倉藩39万9000石の大封を得たが、幽斎は京都吉田で悠々自適な晩年を送ったといわれている。