List of states in the Holy Roman Empire (O)

This is a list of states in the Holy Roman Empire beginning with the letter O:

Name Type Circle Bench Formed Notes
Oberbronn County 1622: Partitioned from Leiningen
1665: Annexed to Rickingen
Oberehnheim (Obernai) Imperial City Upp Rhen 1648: Annexed to France
Obermünster in Regensburg Abbacy Bav 1500: Bavarian Circle
1793: Council of Princes
Oberried Provostry
Oberstein HRE Lordship
HRE County
1682: Line died out
1766: the Counts of Limburg-Styrum become the owners of the Lordship of Oberstein
Ochsenhausen 1391: Abbey Swab 1495: Became "reichsfrei" (territorially independent)
1793: Council of Princes
1803: Secularized
1806: Annexed to Wurttemberg
Odenheim Provostry Upp Rhen
Offenburg Imperial City Swab SW 1289 1803: Mediatized to Baden
Olbruck HRE Lordship
Oldenburg
Grand Duke of Oldenburg, Heir in Norway, Duke of Schleswig, Holstein, Stormarn, Ditmarshes & Oldenburg, Prince of Lübeck and Birkenfeld, Lord of Jever and Kniphausen"
County
1774: Duchy
1829: Grand Duchy
Low Rhen PR 1101 est Before 1180: Part of older Duchy of Saxony, till emperor deposed Henry the Lion
1181: Counts obtained Imperial immediacy at the carve-up of the older Duchy of Saxony
1667: Main Oldenburg line died out
1676: To Christian V of Denmark
1773: To Grand Duke Paul of Russia
1871: Joined German Empire
Orange 11th century: County
1173: Principality
1376: HRE Principality
Upp Rhen 11th century Split off from Countship of Provence
1150: Division into 2 princely lines
1289: Lines reunited
1417: To Châlons dynasty
1530: To Nassau dynasty
1660-1665: French occupation
1673-1702: French occupation
1713: To France
Orange-Nassau
Orlamünde County 1032 1015: Annexed to Weimar
Orlamünde County 1170 Partitioned from Ballenstädt
Partitioned several times
1411: Annexed to Meißen
Orlamünde-Gräfenthal County 1295 Partitioned from Orlamünde
1321: Partitioned into Orlamünde-Lauenstein, Orlamünde-Weimar and Orlamünde-Wiehe
Orlamünde-Gräfenthal-Lichtenkamm County 1406 Partitioned from Orlamünde-Lauenstein
1426: Annexed to Meißen
Orlamünde-Lauenstein County 1321 Partitioned from Orlamünde-Gräfenthal
1406: Partitioned into Orlamünde-Gräfenthal-Lichtenkamm, Orlamünde-Lauenstein-Schaunforst and Orlamünde-Lichtentanne
Orlamünde-Lauenstein-Schaunforst County 1406 Partitioned from Orlamünde-Lauenstein
1467: Annexed to Saxe-Wittenberg
Orlamünde-Lichtentanne County 1406 Partitioned from Orlamünde-Lauenstein
1460: Annexed to Saxe-Wittenberg
Orlamünde-Plassenburg County 1285 Partitioned from Orlamünde-Weimar
1340: Annexed to Meißen
Orlamünde-Weimar County 1100 Partitioned from Weimar
1139: Annexed to Ballenstädt
1170: Recreated on partition
1365: Annexed to Meißen
Orlamünde-Wiehe County 1321 Partitioned from Orlamünde-Gräfenthal
1372: Annexed to Meißen
Orsini and Rosenberg
Prince of Orsini and Rosenberg, Baron of Lerchenau and Grafenstein
1681: HRE Count (Personalist)
1790: HRE Prince (Personalist)
n/a FR 1681 13th century: Family 1st mentioned
1684: Adopted style of "Orsini-Rosenberg"
Ortenau Landgraviate
Ortenburg
Count of Ortenburg, Count and Lord of Tambach
1805: HRE County 1048 1141: 1st use of "Count of Ortenburg"
1395: Partitioned into Ortenburg-Altortenburg (extinct 1446), Ortenburg-Dorfbach (extinct 1462) and Ortenburg-Neuortenburg
1417: Imperial estate
1418/19: Line of counts died out; passed to Counts oc Cilli
1500: Bavarian Circle
1805: Ceded to Bavaria
Ortenburg-Altortenburg County 1395 Partitioned from Ortenburg
1446: Annexed to Ortenburg-Dorfbach
Ortenburg-Carinthia County 12th century Created from the Ortenburger and Sponheimian territories in Carinthia
1660: Annexed to Austria
Ortenburg-Dorfbach County 1395 Partitioned from Ortenburg
1462: Annexed to Ortenburg-Neuortenburg
Ortenburg-Neuortenburg County 1395 Partitioned from Ortenburg
Osnabrück 783: Bishopric
1226: HRE Prince-Bishopric
Low Rhen EC 783 Before 1180: Part of older Duchy of Saxony, till emperor deposed Henry the Lion
1180: As fief to Tecklenburg at the carve-up of the older Duchy of Saxony
After 1648: Osnabrück alternately ruled by a Protestant Administrator and Catholic Prince-Bishop
1793: Council of Princes
1803: Secularized to Hanover
1813: Annexed to Hanover
Osterberg Lordship 1540 Partitioned from Kronburg
1745: Renamed to Rechberg and Rothenlöwen
Öttingen 1147: County
1674: HRE Prince
Swab 1141 1423: Partitioned into Öttingen-Flochberg, Öttingen-Öttingen, Öttingen-Spielberg and Öttingen-Wallerstein
1522: Division into Ottingen-Ottingen and Ottingen-Wallerstein
Öttingen-Baldern 1798: Line extinct; passed to Ottingen-Wallerstein
Öttingen-Flochberg County 1423 Partitioned from Öttingen
1549: Annexed to Öttingen-Öttingen
Öttingen-Öttingen County
1674: Principality
Swab 1423 Partitioned from Öttingen
1731: Line extinct; annexed to Öttingen-Wallerstein
Öttingen-Spielberg County
1734: Principality
1423 Partitioned from Öttingen-Wallerstein
Öttingen-Wallerstein County
1774: Principality
Swab 1423 Partitioned from Öttingen
1623/1694: Division into Ottingen-Baldern, Ottingen-Spielberg, Ottingen-Wallerstein
Ottobeuren Abbacy
Overijssel Lordship Burg 1512: Burgundian Circle

References

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