Daimyo Yashiki in Edo were places where daimyo stayed during their term of Sankinkotai (duty of alternate-year attendance in Edo), and they also had an embassy-like function for daimyo (han, or his domain) for political or economical negotiations with the Bakufu.
江戸の大名屋敷は、その大名が参勤交代で江戸に滞在する間に居住し、また、現在の大使館のような役割を持ち、大名（藩）の幕府への政治的、経済的な窓口としても機能した。