Wat Ayothaya (Wat Derm) is located in the northern part of the Ayothaya Old City Conservation Area. Evidence of the building of the temple appears in the chronicles north.Phraya Prachakitchak Written in the Ionian chronicle that it used to be a palace in the Lavo period before Later, Phra Chao Luang raised it to be a temple since Chulsakracha passed 400 years ago (1581 B.E.) and also used to make swords of Phra Naresuan.

Has been announced to be registered as a national historic site in 1943 by announcing in the Royal Gazette. Nowadays, it still remains as an ancient site. And have both been restored.

Can go anytime or throughout the year