Historical data about the monastery and its construction are unknown.
The site is shown on a 19th-century map as having a chedi and is designated Wat Khun Yuan (วัดขุนญวน).
Phraya Boran Ratchathanin also shows the temple on his 1926 CE map as Wat Khanun Yuan (วัดขนุนญวน). (3)
The temple was renamed in 1971 CE Wat Phrom Niwat by King Rama IX. Wat Phrom Niwat is classified as a third-class Royal temple of the 2nd grade - Worawiharn, following a ranking system for royal temples initiated in 1913 CE. [2]
Near Wat Phrom Niwat, was one of the former seven northern ferries across the old Lopburi River - at present Khlong Mueang or city canal - linking the monastery with the North Landing near the Sat Kop Gate and the Sat Kop Fortress. (4) [4]
In the manuscript “Geographical description of Ayutthaya”, likely compiled in the early Rattanakosin period, it is stated that there was a land market at Wat Khun Yuan in Sala Pun. [4]
Wat Phrom Niwat Worawihan is in geographical coordinates: 14° 21' 34.99" N, 100° 32' 53.97" E.
Footnotes:
(1) Khlong Mueang, or the City Canal, is a stretch of the old Lopburi River on the northern side of Ayutthaya's city island. Many people believe it is a man-made canal. The Lopburi River, descending from the north, ran around the city during the Ayutthaya period and joined the Chao Phraya River near Bang Sai (below Bang Pa-In). Khlong Mueang is a remnant from that time. Today, the canal starts at Hua Ro and ends at the confluence with the Chao Phraya River near Hua Laem.
(2) Lan Na, the kingdom founded by King Mangrai in the late thirteenth century, was known as the Yonok country, the home of the Thai Yon or Thai Yuan. The Tai group that migrated to this area (Chiang Mai, Lamphun, Lampang, Chiang Rai, Phrae, and Nan) was called Yuan or Yonok and had previously settled in the Golden Triangle, where Burma, Thailand and Laos now meet. Wat Khun Yuan's construction could have been sponsored by a nobleman from the Northern Chiang Mai area, hence its name. (Stratton, Carol & McNair Scott, Miriam. Buddhist sculpture of Northern Thailand. Serindia Publications. p. 3 & 20.)
(3) Phraya Boran Ratchathanin denominates the temple as Khanun Yuan, which could be translated as the "Monastery of the Vietnamese Jackfruit". Khanun Yuan is also the name of a species of fish, Lactarius lactarius, known as the False or Milky Trevally.
(4) During the Ayutthaya period, there were twenty-two ferry routes. In the northern area, the six other crossings were: Tha Ma Ap Nam to Wat Choeng Tha, Tha Sip Bia to Sala Trawen, Tha Phra Kalahom to Wat Pho, Wat Tha Sai to Wat Rong Khong, Wat Song to Wat Pa Khonthi, and Tha Khun Nang to Wat Mae Nang Pluem. [2] See "The Ayutthaya boat and ferry landings".
References:
[1] Uluchada, Prayoon, aka Noh Na Paknam (1984). Five Months in the Midst of Ayutthaya's Brick Rubble. (Hā Dư̄an Klāng Sākʻit Pūn Thī ʻAyutthayā). Bangkok.
[2] Website www.dhammathai.org/watthai/listroyalwat1.php - data retrieved 14 Dec 2009.
[3] Ratchathanin, Phraya Boran. Athibai Phaenthi Phra Nakhon Sri Ayutthaya kap khamwinitjai khong Phraya Boran Racha Thanin. Explanation of the map of the Capital of Ayutthaya with a ruling of Phraya Boran Rachathanin - Revised 2nd edition and Geography of the Ayutthaya Kingdom. Ton Chabab print office. Nonthaburi (2007). p. 92.
[4] Pongsripian, Vinai, Dr. (2007). Phanna phumisathan Phra Nakhon Sri Ayutthaya: Ekasan jak Ho Luang. Geographical description of Ayutthaya: Documents from the palace. Bangkok: Usakane.