Wat Khae, or the Monastery of the Trumpet Tree (1), is an active temple situated off Ayutthaya's city island, in the northern area, in the Hua Ro Sub-district. The temple is located on an islet called Ko Loi (2) and stands opposite the mouth of the Lopburi River.

Wat Monthop was southwest, and Wat Saphan Kluea was southeast of Wat Khae. Wat Maha Lok stood west opposite the waterway leading to the Front Palace and the Pa Sak River.

In situ are the classic monastic structures such as the ordination hall, bell tower, the monk's dwellings and others. The ubosot was built in the Rattanakosin style.

There are no traces of any old structures on the premises. Its historical background and period of construction are unknown.

The manuscript "Testimony of the king from Wat Pradu Songtham", a document likely compiled in the early Rattanakosin period, mentioned a land market in front of Wat Khae down to Wat Saphan Kluea. [1] [2]

Wat Khae shows on Phraya Boran Rachathanin's map drafted in 1926 CE and is in geographical coordinates: 14° 22' 6.35" N, 100° 34' 38.12" E.

There were three more temples with the same name in Ayutthaya City District. The restored ruin of Wat Khae in the Historical Park, the restored ruin in Khlong Sra Bua Sub-district and a defunct temple in Wat Tum Sub-district.


(1) Bignoniaceae.

(2) Ko Loi, or Floating Island, is surrounded in the north by Khlong Chong Lom, in the east by the Pa Sak River and in the west by the (new) Lopburi River. Khlong Chong Lom was dug in the early 20th century to reduce the whirlpools near Wat Tong Pu and the Chantra Kasem Palace, separating Wat Chong Lom from the eastern mainland. As the Lopburi River and the Pa Sak River were joining near Wat Tong Pu and the erosive force of the two rivers was destroying the embankment in front of the Chantra Kasem Palace, the idea rose to deviate the Pa Sak River. The deviation was made shortly after the digging of Khlong Chong Lom. Khlong Sai, a small canal cutting through the eastern mainland, from Wat Chong Lom to the present Ayutthaya Ship Building Industrial and Technology College, was widened and deepened. The Pa Sak River, instead of running in front of Wat Tong Pu, changed its course and ran straight from Wat Pa Kho to Wat Phanan Choeng. [3]


[1] Pongsripian, Vinai, Dr. (2007). Phanna phumisathan Phra Nakhon Sri Ayutthaya: Ekasan jak Ho Luang. Geographical description of Ayutthaya: Documents from the palace. Bangkok: Usakane.

[2] Baker, Chris (2011). Note On Testimonies And Description Of Ayutthaya. Journal of the Siam Society. Vol. 99. p. 77 (paragraph on KWPS).

[3] Khemnad, Phayao (2010). Wat Monthop (Amphur Phra Nakhon Sri Ayutthaya). Fine Arts Department - 3th Region.