Saraburi is one of the central provinces of Thailand. Neighboring provinces are (from north clockwise) Lopburi, Nakhon Ratchasima, Nakhon Nayok, Pathum Thani and Ayutthaya. Saraburi has been an important town since ancient times. It is believed to have been constructed in the year 1548 during the reign of King Maha Chakkraphat of Ayutthaya as a centre for recruiting troops.