In 1619, he was given the Bingofukuyama Domain which was worth 100,000 koku in the southwest area of Bicchu Province and the south of Bingo Province, but instead of the Kannabe-jo Castle where he first entered, he built a new castle (Fukuyama-jo Castle (Bingo Province)) and a castle town (Fukuyama (castle town)) in present-day Fukuyama City near the Seto Inland Sea as a foothold for the bakufu (Japanese feudal government headed by a shogun) in western Japan by order of the bakufu.
元和(日本)5年(1619年)、備中国西南部と備後国南部で備後福山藩10万石を与えられたが、当初入った神辺城に代えて幕命により西日本の幕府側拠点として瀬戸内海に近い今日の福山市に新たな城（福山城(備後国)）と城下町（福山(城下町)）を築いた。