As he was quoted, Shingen never constructed a new castle within Kai Province during his life, and he kept living in Tsutsujigasaki-yakata (Tsutsujigasaki Mansion) encircled with single moat.
この言の通り、信玄はその生涯の内一度も甲斐国内に新たな城を普請せず、堀一重の躑躅ヶ崎館に住んだ。