Wat Kaeo or the "Crystal Monastery" is a vanished temple once located on
Ayutthaya's city island outside the Historical Park in Pratu Chai sub-district.
The monastery features curiously enough not on Phraya Boran Rachathanin's map drafted
in 1926, but is indicated on a map drafted in the mid-19th century. (1)
On the latter, Wat Kaeo stood south of Wat Mae Nang Muk on the west bank of
Khlong Pratu Jin and more or less opposite Wat Khok Suea and Wat Khok Saeng.
The mid-19th century map indicates no existence of a chedi nor prang. The monastery's
historical background and period of construction are unknown.
Footnotes:
(1) Phraya Boran Rachathanin indicates however a monastery with an identical name in
the area of the present Somdet Phra Sri Nakharin Park.