Carta Mercatoria
Open-knowledge reference entry

The Carta Mercatoria, meaning 'the charter of the merchants', was a 1303 charter granted by Edward I to foreign merchants in England, in exchange for the foreign merchants paying a new tax on imports. It guaranteed them freedom to trade, protection under the law, and exemption from tolls on bridges, roads and cities. It also guaranteed no increase in the duty rates they paid. Additionally, the Carta Mercatoria gave foreigners (or 'aliens' in the parlance of the charter) the official right to be tried by a jury which was at least partially composed of other foreigners.
The charter was revoked by Edward II, owing to complaints by English merchants. In practice however, foreign merchants retained most of their rights.
In 1334, in exchange for financial assistance, Edward III replaced the general grant of rights to foreign merchants with a particular charter granted to the Hanseatic League.
The public source identifies “Carta Mercatoria” as open-knowledge reference entry. This brief keeps that definition visible, then builds a research path around Carta, Mercatoria and Open-knowledge.
Why this record matters
A short description can identify a subject without explaining its stakes. For “Carta Mercatoria”, the useful work is to connect “open-knowledge reference entry” to the records capable of establishing context and consequence.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Jun 22, 2026. The linked authority identifier is Q5047029. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1303 and 1334.
A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. 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
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
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Carta Mercatoria”, its source revision and the description used here.
- Expand the search: follow Carta Mercatoria primary sources, Carta Mercatoria archive and Carta 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 “Carta Mercatoria”?
- Which cited source is closest to the event, object or claim?
- Which institution is responsible for the underlying evidence?
Search terms from this dossier
This entry incorporates text from “Carta Mercatoria” 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.