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Bishopric of Constance

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}} The Bishopric of Constance (German: Hochstift Konstanz) was a Prince-Bishopric and Imperial Estate of the Holy Roman Empire from the mid–12th century until its secularisation in 1802–1803. The (Roman Catholic) Diocese of Konstanz existed from about 585 until its dissolution in 1821. It belonged to the ecclesiastical province of Mainz since 780/782.


  • Geography 1
  • History 2
  • List of bishops 3
  • See also 4
  • External links 5


The immediate territory of the Prince-Bishopric was scattered on both sides of western Lake Constance, stretching from the Höri peninsula and the High Rhine in the west along Untersee with the Monastic Island of Reichenau, the Bodanrück peninsula, and Lake Überlingen to the Linzgau region in the northeast. They did not include the Imperial City of Constance nor Petershausen Abbey. In the south, the bishop's territory bordered on the Landgraviate of Thurgau which was conquered by the Swiss Confederacy in 1460.

Upper Rhenish dioceses of Constance, Straßburg, Speyer, and Worms, c. 1801

The Imperial state should not be confused with the diocese of the same name, which was considerably larger (see map), covering much of present-day Baden-Württemberg, a large part of Switzerland all the way south to the Gotthard Pass, as well as a small part of Vorarlberg, Austria. While the Prince-Bishop was the secular ruler in his prince-bishopric, his powers in his diocese were limited to the pastoral duties exercised by any bishop.

The Old Palace in Meersburg, where the bishops lived until they built a new palace in the 18th century


The Roman Catholic Diocese of Constance, one of the largest dioceses of Germany, was founded in the late 6th century in the course of the Christianization of the Alamanni tribes around Lake Constance and the Upper Rhine. Originally subordinated to the Archdiocese of Besançon, Constance became suffragan to the Archdiocese of Mainz in 782.

A deed by Emperor Frederick I Barbarossa in 1155 confirmed the princely status of the bishop and of his bishopric as an Imperial Estate. The territory of the prince-bishopric contracted during the following centuries under pressure from both the Swiss Confederacy and the House of Habsburg. Furthermore, the city of Konstanz was granted the status of a free imperial city and from then on the bishop’s sovereignty in the city was restricted to a small area around the cathedral church. In 1527, during the Protestant Reformation, the administrative seat of the Prince-Bishop was finally moved to Meersburg across Lake Constance. However, Konstanz fell to the Counter-Reformation induced by the Habsburgs, who eventually abolished its status as a free imperial city and incorporated it into their Further Austrian possessions in 1548.

The huge diocese of Constance suffered heavily during the Reformation and it lost several hundred parishes, convents and other Catholic foundations which were suppressed by the various states, free imperial cities and cantons in Swabia and Switzerland that had become Protestant.

In the course of the German Mediatisation in 1803, the Prince-Bishopric was dissolved and its territory was annexed to the Margraviate of Baden.

In turn, the diocese was dissolved by Pope Pius VII in 1821 after Vicar General Ignaz Heinrich von Wessenberg had been elected diocesan administrator upon the death of the last bishop Karl Theodor von Dalberg in 1817. While Wessenberg was supported by the government of Baden, the Pope never recognized his election as he disagreed with Wessenberg's liberal views. By a bull of 16 August 1821, the pope dissolved the diocese in order to prevent Wessenberg from becoming bishop. The area of the diocese in Baden became part of the newly established Roman Catholic Archdiocese of Freiburg in 1827 while the Swiss areas were incorporated in the Diocese of Basel, whereas the cantons of Obwalden and Nidwalden, parts of Uri, Glarus and Zürich are provisorily administrated by the Diocese of Chur up to today.

List of bishops

Prince-Bishop Marquard Rudolf von Rodt (1689–1704)
1. Bubulcus (d. 534)
2. Cromatius (d. 552)
3. Maximus (first bishop of the re-established bishopric, fl. 590)
18. Audoin (d. 736)
24. Solomon I (835–871)
26. Gebhard I von Wetterau, von Tegerfelden (873–875)
27. Solomon II (875–889)
28. Solomon III (890–919)
30. Conrad I (934–975)
32. St Gebhard (979–995)
43. Gebhard III (1084–c.1106)
53. Konrad von Tegerfelden (1208–1233)
55. Eberhard II von Waldburd-Thann (1248–1274)
76. Otto III of Hachberg (1410–1434)
84. Hugo von Hohenlandenberg (1496–1529; 1531/2)
85. Balthasar Merklin (1530–1531)
86. Johann von Lupfen (1532–1537)
87. Johann von Weeze (1537–1548)
88. Christoph Metzler (1549–1561)
89. Mark Sittich von Hohenems (1561–1589)
90. Andrew of Austria (1589–1600)
91. Johann Georg von Hallwyl (1601–1604)
92. Jakob Fugger (1604–1626)
93. Werner von Praßberg (1626–1627)
94. Johann von Waldburg (1627–1639)
95. Johann Franz I. von Praßberg und Altensummerau (1645–1689)
96. Marquard Rudolf von Rodt (1689–1704)
97. Johann Franz Schenk von Stauffenberg (1704–1740)
98. Hugo Damian von Schönborn (1740–1743)
99. Kasimir Anton von Sickingen (1743–1750)
100. Franz Konrad von Rodt (1750–1775)
101. Maximilian Christof von Rodt (1775–1799)
102. Karl Theodor von Dahlberg (1799–1817)
(103.) Ignaz Heinrich von Wessenberg, elected in 1817 but never recognised by Pius VII; in 1821 the bishopric was dissolved.

See also

External links

  • Liste der Bischöfe von Konstanz - complete list of bishops

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