In 1599, Ieyasu granted him a fief in Musashi Province, and increased his holdings in 1602 and 1603 with transfers first to Shimōsa and then to Shinano Provinces. Tadateru married Irohahime, the first daughter of Date Masamune, in 1606.
In 1599, Ieyasu allocated him a fief in Musashi Province, and increased his holdings in 1602 and 1603 by transferring them first to Shimōsa and then to Shinano Provinces. Tadateru married Irohahime, the eldest daughter of Date Masamune, in 1606.