In addition to the theory that he died, there is also the statement in some books that he became a feudal lord of the property of 10,000 koku in Tanakura, Mutsu Province, however, this remains unknown.
なお死亡説のほか、一部の本には陸奥国棚倉藩1万石で大名に復帰したという記述もあるが、詳細は不明である。