As his father Sadakatsu committed suicide due to Iechika MIMURA, a local lord of Bicchu Province, he and his mother escaped to Shimodoi Village, Tsudaka County, Bizen Province, and then they went to Naoie UKITA and stayed at his place.
備中国の国人領主三村家親により父・三浦貞勝が自害したため、母と共に備前国津高郡下土井村に逃れ、更に宇喜多直家の元に身を寄せた。