Phra Nakhon Si Ayutthaya province
province in central Thailand
Phra Nakhon Si Ayutthaya, or locally and simply Ayutthaya (historically Iudea, Iudiad, Iudia, Juthia or Judia), is one of the central provinces (changwat) of Thailand. Neighboring provinces are (from north clockwise) Ang Thong, Lopburi, Saraburi, Pathum Thani, Nonthaburi, Nakhon Pathom and Suphan Buri.
Toponymy
The name Ayutthaya derives from the Sanskrit word Ayodhyā, found in the Ramayana, which means "the invincible [city]". Grammatically, this word is composed of the morphemes a- 'not' + yodhya 'defeatable' (from the root yudh- 'to fight') + ā, a feminine suffix.
Geography
Phra Nakhon Si Ayutthaya, covering 2,548 square kilometres (984 sq mi), is on the flat river plain of the Chao Phraya River valley. The presence of the Lopburi and Pa Sak rivers makes the province a major rice farming area. The total forest area is 0.05 km2 (0.019 sq mi) or 0.02 per mille of provincial area.
History
Ayutthaya was founded in 1350[a] by King U-Thong. However, the establishment of Ayutthaya is far older than 14th century. Evidence shown that the area was already populated during Mon Dvaravati period.
This brief starts where responsible research should: with the source description of “Phra Nakhon Si Ayutthaya province” as province in central Thailand. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the places & architecture register because the source frames it as province in central Thailand. Its deeper value depends on whether names, dates, institutions and citations support that framing.
The strongest evidence will usually combine a dated visual record with documents produced by the authority responsible for the place. The source revision retrieved here is dated Aug 20, 2026. The linked authority identifier is Q476222. VIAF identifies the subject as 167607148. The Library of Congress control number is n82062446. Authority coordinates are 14.349, 100.559. 1 of 4 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1350.
Architectural summaries often privilege surviving fabric and can understate demolished phases, contested use or displaced communities. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “Phra Nakhon Si Ayutthaya province”, its source revision and the description used here.
- Expand the search: follow Phra Nakhon Si Ayutthaya province primary sources, Phra Nakhon Si Ayutthaya province archive and Phra research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Phra Nakhon Si Ayutthaya province”?
- Which authority defined the place, boundary or structure at the relevant date?
- What physical evidence or contemporary plan supports the description?
Search terms from this dossier
This entry incorporates text from “Phra Nakhon Si Ayutthaya province” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.