Wat Pa Sathon, or the Monastery of the Santol Quarter (1), was situated on Ayutthaya's city island in the southwestern area of the city in the Pratu Chai Sub-district. The monastery stood on the banks of Khlong Tha Phra (2). In its immediate vicinity were Wat Satdichon, Wat Pa Sai and Wat Chang.
There are no traces of foundations or brickwork at ground level. I classified Wat Pa Sathon as defunct.
Historical data about the monastery and its construction is unknown.
The site is mentioned on Phraya Boran Rachathanin's map drafted in 1926 CE on the northern canal bank. Phraya Boran (1871-1936 CE) was the Superintendent Commissioner of Monthon Ayutthaya from 1925 till 1929 CE but occupied important functions since 1896 CE in Monthon Ayutthaya.
A 2007 Fine Arts Department (FAD) map shows Wat Pa Sathon on the south side of the canal west of Wat Cho, contrary to what is indicated by Phraya Boran Rachathanin.
The site was in geographical coordinates: 14° 20' 45.78" N, 100° 32' 42.46" E.
Footnotes:
(1) Sathon (สะท้อน), also called krathon (กระท้อน) is known as Santol also called sour apple or cotton fruit. The latin name is Sandoricum koetjape. [1]
(2) Khlong Tha Phra, also known as Khlong Klaep, is a defunct canal situated on Ayutthaya's city island. Some stretches of this old canal still can be seen on the western side. The canal had its mouth at the old Lopburi River today renamed the Chao Phraya River. Here stood one of the eleven water gates around the island called Pratu Khlong Tha Phra. The canal ended at the confluence with Khlong Chakrai Yai. Beyond this confluence, it continued in an eastern direction as Khlong Pa Mo and joined the Pratu Thep Mi Canal. There is evidence that this canal continued eastwards in a straight line to join Khlong Makham Riang.
References:
[1] Santol - Detail from 'Flora de Filipinas (1877-1883) - Gran edicion - Atlas I - Francisco Manuel Blanco.
