The Prince-Bishopric of Regensburg (German: Fürstbistum Regensburg; Hochstift Regensburg) was a small ecclesiastical principality of the Holy Roman Empire located near the Free Imperial City of Regensburg in Bavaria. It was elevated to the Archbishopric of Regensburg in 1803 after the dissolution of the Archbishopric of Mainz. The Prince-Bishopric of Regensburg must not be confused with the Roman Catholic Diocese of Regensburg, which was considerably larger.

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Quick Facts Fürstbistum/Hochstift Regensburg (German), Status ...

Prince-Bishopric of Regensburg Fürstbistum/Hochstift Regensburg (German)
13th century–1803
Flag Coat of arms
Status	Prince-Bishopric
Capital	Regensburg Cathedral
Government	Elective principality
Historical era	Middle Ages
• Founded by St Boniface	739
• Gained Reichsfreiheit	13th century
• Regensburg Reichsfrei     as Imperial City	1245
• City annexed to Bavaria	1486–1496
• City adopted Reformation	1542
• City made permanent     seat of Reichstag	1663–1806
• Mediatised to new     Archbishopric¹	1803
• Ceded to Bavaria on     Imperial collapse	January 6, 1806
Preceded by Succeeded by Duchy of Bavaria Principality of Regensburg
1: The Bishopric, the Imperial City and all three Imperial Abbeys were mediatised simultaneously.

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The diocese was founded in 739 by Saint Boniface;^[1] it was originally subordinate to the archbishop of Salzburg. In the 13th century, the bishop of Regensburg became a prince of the Holy Roman Empire with a seat and vote at the Imperial Diet. As an enclave of the Duchy of Bavaria, the prince-bishopric was not able to expand territorially and remained one of the smallest of the Empire.

In the course of the German mediatization of 1803, the prince-bishopric was united with the Free Imperial city of Regensburg and other territories to form the Principality of Regensburg. Karl Theodor Anton Maria von Dalberg was the first prince-archbishop. In 1810, the pincipality became part of the Kingdom of Bavaria, although it retained archiepiscopal status. This followed the fall of the Holy Roman Empire in 1806 during the War of the Third Coalition.

The Bavarian Concordat of 1817 following Dalberg's death downgraded the Archdiocese of Regensburg into a suffragan diocese subordinate to the archbishop of Munich and Freising.

• Saint Wolfgang (972–994)
• Saint Albertus Magnus (1260–1262)
• Joseph Clemens of Bavaria (1685–1716)
• Clemens August of Bavaria (1716–1719)

• Roman Catholic Diocese of Regensburg

• Josef Staber: Kirchengeschichte des Bistums Regensburg. Regensburg 1966 (in German)

• Official website (in German)