When king Rama 1 acceded to the throne in 1782, He decided to move the capital from thon buri to Bangkok, Which is on the opposite site of river.the grand palace was built with the royal chapel, or the temple of the emerald Buddha,located within the compound of the palace. The architectural plan of the grand palace identical to that of the royal palace in ayutthaya , the former capital It was built close to the river facing north , with the river on the left . the sites of various. Royal residences, Throne halls and royal chapels are the same as those of the royal palace in the Ayutthaya period