There are several classes of palaces in Thailand. The Grand Palace is the main palace of the monarch. This was constructed by King Rama I as his residence, the center of administration of the kingdom, and as the center of royal ceremonies. During the early Ratanakos in period, this palace was called Phra Ratchwang Luang In the Fourth Reign, it was renamed Phra Borom Moho Rotchawang or the Grand Palace. Nowadays, it serves mainly as the center of royal ceremonies and as a center for receiving foreign dignitaries.
Phra Ratchawang is also a royal palace, but of lower status than Phra Borom Moho Ratchawan g It is also the residence of a monarch, and a palace that is designated as Phra Ratchawang must be declared to be so by a royal decree. Up to now, 19 such palaces has been declared Phra Ratchawang such as Boworn Satharn Mongkol Palace , Sanam Chan Palace, etc.