Ieyasu retired to Sunpu Castle in Sunpu, but he also supervised the building of Edo Castle, a massive construction project which lasted for the rest of Ieyasu's life.
Ieyasu pensiun ke istana Sunpu di Sunpu , tetapi ia juga mengawasi pembangunan istana Edo, proyek pembangunan besar-besaran yang berlangsung selama sisa hidup Ieyasu.