Diocese of Toledo, Ohio
diocese of the Catholic Church in USA
The Diocese of Toledo (in America) (Latin: Dioecesis Toletana in America) is a diocese of the Catholic Church covering nineteen counties in northwestern Ohio in the United States. It is a suffragan see of the Archdiocese of Cincinnati. The bishop is Daniel Thomas. Our Lady, Queen of the Most Holy Rosary Cathedral is the mother church.
History
1700 to 1800
During the 17th century, present-day Ohio was part of the French colony of New France. The Diocese of Quebec, had jurisdiction over the region. However, unlike other parts of the future American Midwest, there were no attempts to found Catholic missions in Ohio.
In 1763, Ohio Country became part of the British Province of Quebec, forbidden from settlement by American colonists. After the American Revolution ended in 1783, Pope Pius VI erected in 1784 the Prefecture Apostolic of the United States, encompassing the entire territory of the new nation. In 1787, the Ohio area became part of the Northwest Territory of the United States.
Begin with the source’s own compact description: “Diocese of Toledo, Ohio” is diocese of the Catholic Church in USA. The dossier treats that line as a proposition to test through Diocese, Toledo and Ohio, not as a finished interpretation.
Why this record matters
The phrase “diocese of the Catholic Church in USA” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
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 Jul 31, 2026. The linked authority identifier is Q877390. The Library of Congress control number is n2006164040. 1 of 3 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 1700, 1800, 1763 and 1783.
A single description cannot reconcile every naming convention, rebuilding phase or administrative transfer associated with a place. 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 “Diocese of Toledo, Ohio”, its source revision and the description used here.
- Expand the search: follow Diocese of Toledo, Ohio primary sources, Diocese of Toledo, Ohio archive and Diocese 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 “Diocese of Toledo, Ohio”?
- Which earlier names or jurisdictions may reveal additional records?
- Which authority defined the place, boundary or structure at the relevant date?
Search terms from this dossier
This entry incorporates text from “Diocese of Toledo, Ohio” 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.