Wat Chai Wattanaram was built in 1630 by King Prasat Thong during the later period of Ayutthaya. It was built to commemorate his mother's hometown and to celebrate his coronation. The main prang is surrounded by many lesser prangs and towers in eight directions. The main prang is believed to contain relics of the Lord Buddha. Another theory is that it was also built to commemorate yet another victory of the Khmer, therefore going back in using Khmer architecture.