After the Battle of Sekigahara ended, he was invited to become a koshogumi (page corps) in January 1601 as his father Masatsugu was given an extra allowance of 10,000 koku, and he was also given a territory of 1,000 koku in Bicchu Province.
関ヶ原の戦い終結後の慶長5年（1600年）12月、父・正次が1万石加増された際に召されて小姓組に列し、備中国に1000石の采地を与えられた。