Creation of the Diocese of Baltimore
- When
- 1783–1791
- Where
- See of the Prefecture Apostolic of the United States; Location of the clergy vote not stated in sources; Diocese of Baltimore; Chapel of Lulworth Castle, Dorset; Pro-cathedral, Baltimore
- Episodes
- 5
On 6 November 1789, Pope Pius VI appointed John Carroll as the first Roman Catholic bishop in the United States, elevating the Prefecture Apostolic of the United States into the Diocese of Baltimore, the first diocese solely within the United States, with its see at Baltimore.
Episodes
- Petition for a Superior and the Prefecture Apostolic
Maryland clergy petitioned the Vatican in 1783; Pius VI erected the Prefecture Apostolic of the United States in 1784, seated in Baltimore under Carroll.
- Maryland Clergy Recommend Carroll
In April 1789, the Maryland clergy voted 24 to 1 to recommend that the Vatican appoint John Carroll as the first bishop of Baltimore.
- Diocese of Baltimore Erected; Carroll Appointed Bishop
On 6 November 1789, Pius VI appointed John Carroll bishop of Baltimore, elevating the prefecture into the first diocese solely within the United States.
- Consecration of Carroll at Lulworth Castle
Carroll was consecrated on 15 August 1790 in the chapel of Lulworth Castle in Dorset, assisted by Reverends Charles Plowden and James Porter.
- First Diocesan Synod in the United States
In 1791, Carroll convened a synod in Baltimore, the first diocesan synod in American history, held at the pro-cathedral.
Background and detail
Background. After the American Revolution, anti-Catholic sentiment and laws loosened in the United States, where Catholicism was not government-regulated. In November 1783, Maryland's Catholic clergy petitioned the Vatican to nominate a priest as superior of the missions, and in November 1784 Pius VI erected the Prefecture Apostolic of the United States.
Appointment of John Carroll. In April 1789, the Maryland clergy voted 24 to 1 to recommend that the Vatican appoint Carroll as the first bishop of Baltimore. On 6 November 1789, Pius VI appointed him bishop of Baltimore, making him the nation's first Catholic bishop over the only diocese in the nascent United States.
Significance of the See. The Diocese of Baltimore was the first diocese solely within the United States, and the Archdiocese of Baltimore later became the oldest diocese and archdiocese in the country. Because Maryland held the largest Catholic population, Pius VI had placed the prefecture see in Baltimore, a pattern continued when the diocese was erected.
People involved
- Pope Pius VI · Appointing pope who erected the Diocese of Baltimore and named John Carroll its bishop
- John Carroll · First Roman Catholic bishop in the United States, appointed bishop of Baltimore on 6 November 1789
- Maryland clergy · Clergy who in April 1789 voted 24 to 1 to recommend Carroll's appointment as first bishop of Baltimore
Sources
- John Carroll (archbishop of Baltimore) Wikipedia, revision of 2026-09-28
- Archdiocese of Baltimore Wikipedia, revision of 2026-09-25
Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.