Wat Mahathat, located in Phra Nakhon Si Ayutthaya Province, is one of the temples situated within the Historic City of Ayutthaya. This temple holds great significance during the Ayutthaya Kingdom as it enshrined the relics of the Buddha at the heart of the ancient city. Additionally, it served as the residence for the Supreme Patriarch of the Kamavasi sect, highlighting its importance in both religious and historical contexts.