Wat Nang Kui, or the Monastery of the Lady named Kui, is an active temple located off the city island in the southern area of Ayutthaya, in the Samphao Lom Sub-district. (1)
The monastery is situated along the Chao Phraya River. (2) To its west side lies Wat Khun Phrom, and to its south, Wat Mai Bang Kraja.
The monastery was built in 1587 CE, a few years after the first fall of Ayutthaya. A wealthy woman, Lady Kui, sponsored the construction, hence the temple's name. After the second fall of Ayutthaya, the monastery was left empty and neglected until the Rattanakosin period, during the Reign of King Rama III, when it was renovated.
The temple is known for its sandstone Buddha image, Mae Takhian Thong, and the Luang Pho Yim statue.
Historical data about the monastery is unknown.
The site is indicated on a 19th-century map and Phraya Boran Ratchathanin's map drafted in 1926 CE.
From the temple, you have nearly a straight view of Pom Phet or the Diamond Fort. Therefore, it was surely occupied by the Burmese army in the last battle for Ayutthaya in 1767 CE.