The royal palace was located here from the establishment of
Ayutthaya in the reign of King Ramathibodi 1 (1350 A.D.) to the reign
of King Sam Phraya (1448 A.D.). Later King Borommatrailokanat
ordered a wat to be built on this site in 1448 A.D. to be used as a
monastic area.
After the reign of King Borommatrailokanat, his son King Ramathibodi II,
ordered the construction for two chedis, one of which was kept the
ashes of his father and the other those of his brother, King Borom-
marachathirat III. Another chedi was built by order of King Borom-
rachanophuttangkun. It was similarly used to house royal remains
those of King Ramathibodi II.