Płońsk
town in Masovian Voivodeship, Poland
Płońsk (Polish: [pwɔj̃sk] is a town in central Poland with 21,591 inhabitants (2022). Situated at the Płonka river in the historic region of Mazovia, it is the seat of Płońsk County in the Masovian Voivodeship.
History
According to archaeological research, the Płońsk stronghold was built in the late 10th century within the early Polish state. Dating back to 1155, is the first historical record confirming the existence of Płońsk. Around the castle a group of inhabitants was formed, most of whom initially worked on the land. As a result of the fragmentation of medieval Piast-ruled Poland, it was part of the duchies of Masovia and Płock, and then it was a royal town of the Polish Crown, administratively located in the Płock Voivodeship in the Greater Poland Province. In 1400, Siemowit IV of Masovia, granted it town rights under Chełmno law, then merchants and craftsmen started to come to the town. Płońsk was located on a trade route connecting Toruń with Brześć.
In 1872–1875 astronomer Jan Walery Jędrzejewicz established an astronomical observatory and meteorological station in Płońsk. After his death, the astronomical observatory was moved to Warsaw in 1898.
“Płońsk” enters the record as town in Masovian Voivodeship, Poland. Crown Archives preserves that source wording while asking what Płońsk, town and Masovian can confirm, complicate or overturn.
Why this record matters
“Płońsk” is worth following because a concise public description often conceals a longer documentary argument. Here, Płońsk, town and Masovian provides the most credible route into that argument.
Maps, plans, fabric surveys and administrative records can establish how the site’s name, extent and function changed over time. The source revision retrieved here is dated Sep 12, 2026. The linked authority identifier is Q270656. VIAF identifies the subject as 157142301. The Library of Congress control number is n83059144. Authority coordinates are 52.623, 20.375. 5 of 5 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 2022, 1155, 1400 and 1872.
A single description cannot reconcile every naming convention, rebuilding phase or administrative transfer associated with a place. 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
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 “Płońsk”, its source revision and the description used here.
- Expand the search: follow Płońsk primary sources, Płońsk archive and Płońsk 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 “Płońsk”?
- Which earlier names or jurisdictions may reveal additional records?
- What physical evidence or contemporary plan supports the description?
Search terms from this dossier
This entry incorporates text from “Płońsk” 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.