Wat Chedi Daeng is an active monastery located north of Ayutthaya’s city island on the Phaniat peninsula. Khlong Hua Ro (1) flows to its west, and Khlong Daeng (2) is situated directly north of the monastery.
The monastery has a walled ordination hall with double porches. There are two entries to the east and the west and six windows on the sides. There is actually not a red chedi in situ, but there could have been in earlier times. About 30 metres west of the ubosot stands a twenty-rabbeted-angled chedi typical for the Fourth Ayutthaya architectural sub-period (1732-1767 CE). I presume this chedi is not associated with the ordination hall.
The temple is in geographical coordinates: 14° 22' 29.28" N, 100° 34' 15.60" E.
Wat Chedi Daeng in history
In 1749 CE, the Khmer Kingdom was invaded by a Vietnamese army of the Nguyễn lord. King Reameathiptei III, aka Ang Thong (reign 1747-1747 CE), was dethroned, and Ang Chee was re-installed as King Satha II (reign 1722-1736, 1749 CE). King Reameathiptei III and Ang Snguon (Chey Chettha) fled to the Ayutthaya Kingdom to ask the ruler for an army to drive the Vietnamese out. Ang Snguon, with the help of a Siamese army, expelled the Vietnamese and proclaimed himself king Chey Chettha V. The latter was succeeded at his death by Ang Thong (1756-1757 CE).
The Royal Chronicles of Ayutthaya tell us that King Borommakot ordered the composition of an army at Wat Chedi Daeng (Monastery of the Holy Red Funeral Monument) in 1750 CE to assist the Khmers in fighting off the Vietnamese and Kampuchea becoming a vassal state of Ayutthaya again. The troops' gathering took likely place at Wat Chumphon, or the Monastery of Concentration of Troops (1), nearby Wat Chedi Daeng, where the animistic rites were held before going into battle - a ceremony known as "Phithi Tat Mai Khom Nam," (Cutting the wood which corresponds with the name of the enemy).
“Meanwhile, over in the Country of Kamphut, the Eminent Holy Satha Ong Ing went to ask for the brigades of a Yuan army to come and attack the Capital of Kamphuchathibòdi. Now the Eminent Holy Ramathibòdi and the Eminent Holy Si Chai Chet were unable to battle the Yuan and thereupon led Their voluntary groups of followers in fleeing, routed, on in to seek the protection of the Accumulation of Merit of the Holy Paramount Fig Tree by way of the Municipality of Pracinburi. The government officials of the Municipality of Pracin sent a report document on in and the Chief Magistrate prostrated himself in homage and told the King. The King thereupon manifested His holy compassion by being pleased to send crown servants out to bring both of the Khmer lords, and their voluntary groups of followers, on in to the Holy Grand Metropolis. Then the King issued a holy royal proclamation commanding ten thousand troops be conscripted and sending Phraya Ratcha Suphawadi out to encamp and assemble the troops there at the Monastery of the Holy Red Funeral Monument.” [1]