Due to this, after Ieyasu was transferred to the Kanto region, Shigetsugu was ordered to be under house arrest in the Koito-jo Castle of Kazusa Province (currently Kimitsu City, Chiba Prefecture) with 3000 koku.
これにより、家康が関東に移された後には、上総国小糸城（現在の千葉県君津市）3000石にて蟄居を命じられた。