WAT DAWADUNG 1 (วัดดาวดึงส์)
Wat Dawadung or the "Monastery of the Heaven of Indra" was located on the city
island of Ayutthaya in the
Historical Park in Pratu Chai sub-district. The monastery was
situated north of the premises of the
Chao Sam Phraya Museum, along Pa Thon Road.
The name of the temple is derived from the Traiphum (1).

There are no visual traces of the monastery left at ground level.
Wat Phra Ram was on its
north and
Wat Saphan Nak on its east. The "Master Plan for Tourism Development
of Phra Nakhon Si Ayutthaya and the Neighbouring Provinces
" mentions that the
area of Wat Dawadung was turned into a tennis court. [1] This tennis court still can be
seen on a 2003-2005 digital orthophoto - sheet 51371Vsw. Today the sport installation
has been removed in the execution of the "
Master Plan on the Conservation and
Development of the Historic City of Ayutthaya
" dating from 1993, in order to
improve the view on the majestic Wat Phra Ram.

Its historical background and period of construction are unknown.

A
mid-19th century map shows Wat Pa Nai on the west bank of Khlong Pratu Thep Mi
and south of the canal connecting the latter with
Khlong Chakrai Noi. This does not
match with
Phraya Boran Rachathanin's map drafted in 1926 which situates Wat
Dawadung northeast of Wat Pa Nai and north of the canal connecting Khlong Chakrai
Noi and Khlong Pratu Thep Mi; south of old Talaeng Kaeng Street.

The former monastery was situated in Geo Coord: 14° 21' 9.66" N, 100° 33' 44.20" E.

Footnotes:

(1) The Traiphum or the "Three Worlds" consists of the Immaterial World, the Fine
Material World and the Sensuous World. The latter consists of eleven realms, dominated
by the five senses. Four realms are states of deprivation (which include the animal and
hell realms - the underworld), one is the world we presently live in (human beings) and
six are happy destinations - the dewa heavens. Dawadungsa is the second tier of the
dewa heavens, reckoned from the earth. Dawadungsa was located above the peak of
Mount Meru (Phra Sumeru) the centre of the universe. In the Dawadungsa Heaven is the
palace of Indra (Wechaiyanta) where Indra resides and where the Kalpa trees flourish
(Th: Kamaphruk), whose branches furnish everything that the angels can desire. [1]

References:

[1] Master Plan for Tourism Development of Phra Nakhon Si Ayutthaya and the
Neighbouring Provinces - Tourism Authority of Thailand - 6 August 1988 -  page 4-58.
[2] The Wheel of The Law - Henry Alabaster (1871) - page 82, 171.
Detail of Phraya Boran Rachathanin's map - Anno 1926
Text & maps by Tricky Vandenberg - January 2009
Reviewed February 2011, January 2013
Detail of a 19th century map
(Detail of Phraya Boran Rachathanin's map - Anno
1926)
(Detail of a 19th century map - Courtesy Sam Chao
Phraya Museum)
Former tennis court in location
(Former tennis court in location)
Detail of a 2007 Fine Arts Department GIS map
(Detail of a 2007 Fine Arts Department GIS map -
Courtesy of the Fine Arts Department - 3th Region /
the location of Wat Dawadung on this map is in my
opinion not correct)