Wat Mahathat is located in front of the Grand Palace to the east, next to Pa Than Bridge. The Temple is believed to be one of Ayutthaya's oldest temples, possibly built by King Boromaraja I (1370-88).
Wat Phra Mahathat, Thailand, was a royal Temple of the Ayutthaya Kingdom. It is one of the oldest and most significant temples in the history of Ayutthaya as it housed the Buddha's holy relic. Many important royal ceremonies of the Ayutthaya era had been hosted here. When the Ayutthaya Kingdom failed in 1767, Wat Phra Mahathat was severely damaged by fire and was since abandoned. The temple is located in the area of the Ayutthaya Historical Park nowadays. attractions in Wat Phra Mahathat of Phra Nakhon Si Ayutthaya include remains of important old buildings such as pagodas, octagonal pagodas, royal hall, small temples, murals under a Bodhi tree, and the famous sand-stone Ayutthaya-style head of the Buddha image in a tree's root. Nearby attractions - The Ancient Palace, with only the basement of the building left to be seen today.