Isla Mayor
municipality of Spain
Isla Mayor is a municipality located in the province of Seville, Spain. According to the 2009 census, the municipality has a population of 5873 inhabitants.
Geography
The main village is Isla Mayor, about 45 km south west of Sevilla, The small village of Poblado de Alfonso XIII is in the same municipality.
Isla Mayor separated from the municipality of Puebla del Río in 1994.
Isla Mayor is situated in the Las Marismas (marshes) of the Bajo Guadalquivir River, of which one part forms part of the Doñana National Park. The land is formed from sediment at the mouth of the Guadalquivir river. It is crisscrossed by canals, with the land dedicated primarily to the cultivation of rice.
Previously just a seasonal settlement for workers in the rice harvest, it became a permanent settlement in 1956 with the establishment of a paper factory by the Instituto Nacional de Colonización. The village and municipality were known as Villafranco del Guadalquivir, in honour of dictator Francisco Franco. In 2000, the town was renamed "Isla Mayor" by popular vote.
This brief starts where responsible research should: with the source description of “Isla Mayor” as municipality of Spain. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the general reference register because the source frames it as municipality of Spain. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Mar 11, 2026. The linked authority identifier is Q1605575. VIAF identifies the subject as 316734820. Authority coordinates are 37.132, -6.165. 2 of 3 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 2009, 1994, 1956 and 2000.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
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The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
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- Expand the search: follow Isla Mayor primary sources, Isla Mayor archive and Isla 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
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This entry incorporates text from “Isla Mayor” 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.