Wat Nok is a restored monastery located within the Ayutthaya Historical Park. It can easily be found on the southwestern corner of Wat Maha That. Given such a close location, Wat Nok is sometimes mistaken as part of Wat Maha That though it has its own distinct style and history.
Wat Nok is situated in an east/west axis. In situ at Wat Nok are the remains of a preaching hall and a large prang-like chedi. The ubosot consists of a basic foundation and renovated traces of its walls and pillars. There are several headless Buddha images on its altar - all in Taming Mara poses. The prang-like chedi reflects the Khmer style, but its multiple redented corners and elaborate portico (with secondary prang) are suggestive of the late-Ayutthaya period. There is a staircased-entrance on the eastern side, but nothing is visible inside except for bat droppings. The prang has some of the best preserved stucco in the city. There are many geometric designs visible and a number of preserved images. A few niches have partial remains of standing Buddha images and one of the redented corners has a statue of some headless mythological figure. On the southern side there are traces of Rahu eating the sun.
There isn’t a clear record of this temple’s construction date, but King Maha Thammaracha (r. 1569-1590) persuaded a Mon monk to live here around 1584 - the Great Holy Tera Khan Chong. This honor was in reward for his role in Prince Naresuan's winning independence from the Burmese.
Royal Chronicles describe this story in great detail. While still technically allied with the King Honsawadi of Burma, Prince Naresuan marched his troops to the city of Khraeng, where they encamped near the monastery of the Great Holy Tera Khan Chong. King Honsawadi, in the meantime, set up a plan to betray Prince Narasuaen - sending out an army of 10,000 to ambush and kill him. Two Mon military leaders, Phraya Kiat and Phraya Ram, were ordered to attack Prince Naresuan’s troops and execute him (Cushman 88).
However, the Great Holy Tera Khan Chong was informed of this treachery and took pity on Prince Naresuan. He arranged a meeting between Phraya Kiat, Phraya Ram, and Prince Naresuan in which all was revealed. As a result, Prince Naresuan declared revenge and announced that the two kingdoms “shall be totally divorced from each other from this day to the end of kalpa.” (Cushman 89). He promised to escort the two Mon leaders and the Holy reverent to the safety of Ayutthaya – fighting together against the Burmese along the way.
While leading the Great Holy Thera Khan Chong and his relatives - and the families of Phraya Kiat and Phraya Ram - back to Ayutthaya, Prince Naresuan defeated the enraged Burmese in battle and Ayutthaya became independent once again. King Maha Thammaracha (1569-1590), the father of Prince Naresuan, rewarded the Mon families in gratitude. Phraya Kiat and Phraya Phra Ram were directed to reside in the vicinity of the Khamin Village and Wat Khun Saen. The relatives of Tera Khan Chong were sent to live in a village behind Wat Nok (Cushman 90). This Mon areas stretched all the way from Wat Nok to Wat Phong. It is highly likely that Thera Khan Chong served as the abbot of Wat Nok.