Tamenobu remained close to Mitsunari thereafter, and some say that he later protected Mitsunari's second son Shigenari after the Battle of Sekigahara, and took Mitsunari's third daughterTatsuhime, who had been an adopted daughter of Kodaiin, as the wife of his son Nobuhira TSUGARU, as a token of gratitude.
以後も三成とは親密で、後年、関ヶ原の後に三成の次男重成を保護したり、高台院の養女になっていた三成の三女辰姫を息子の津軽信牧の妻に迎えているのは、それに対する報恩という説もある。