Located outside the city to the southeast. This monastery is built by King U-Thong (the first King of Ayutthaya). King Naresuan the Great commended that the pagoda be built to celebrate the victory of his single-handed combat on the elephant back.
The Chedi is one of the largest in Ayutthaya. Flanking step up to the Chedi are two Mondops housing Buddha images. A ruined wihan containing a Reclining Buddha at the left side of the entrance.

In 1766, Ayutthaya was sacked by the Burmese army. It was re-established and officially recognized in 1957. local people also called it Wat Chao Phraya Thai.