List of states in the Holy Roman Empire (O)

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

Name Type Circle Bench Formed Notes
Blason Oberbronn 67.svg Oberbronn Lordship n/a n/a 1232: First mentioned; fief of Lichtenberg 1352: Sold to Ochsenstein as fief of Lichtenberg
1382: Sold to Lichtenberg
1452: Sold to Lützelstein as fief of Lichtenberg
1480: To Zweibrücken-Bitsch
1551: To Leiningen-Westerburg-Leiningen
1622: To Leiningen-Westerburg-Oberbronn
1665: 2/3 to Hesse-Homburg, 1/3 to Sinclair
1727: Hessian portion to Hohenlohe-Waldenburg-Bartenstein
1732: Sinclair portion to Lewenhaupt
1764: Part of Hohenlohe portion to de Dietrich
1789: All to France
Blason Obernai 67.svg Oberehnheim (Obernai) Imperial City Upp Rhen RH 1248: Free Imperial City 1679: To France
Blason département fr Haut-Rhin.svg Oberelsaß
See: Upper Alsace
Landgraviate
CoA Obermünster Abbey Regensburg.svg Obermünster in Regensburg Abbacy Bav RP 1000s: Established with imperial immediacy 1315: HRE Princess of the Empire
1803: To the Archbishopric of Regensburg
1810: To Bavaria; suppressed
CoA Tengen County.svg Oberried Provostry n/a n/a 1237 1249: Abolished
1255: Reestablished
1496: Advocacy to Freiburg within Further Austria
1725: Advocacy to St Blaise's Abbey within Further Austria
1806: To Baden
Armoiries de Salm 2.svg Obersalm
See: Salm in the Vosges
County
CoA Oberstein Lordship.svg Oberstein Lordship n/a n/a 1075: First mentioned; to Stein 1250: Line Daun-Oberstein established
1364: Partitioned into Oberstein-Gundheim and Oberstein-Kredenburg
CoA Oberstein Lordship.svg Oberstein-Gundheim Lordship n/a n/a 1364: Partitioned from Oberstein 1683: Extinct; to the Palatinate
1699: To Greiffenclau
CoA Oberstein Lordship.svg Oberstein-Kredenburg Lordship n/a n/a 1364: Partitioned from Oberstein 1602: Extinct; to Speyer
CoA Obwalden Canton.svg Obwalden Imperial Valley n/a n/a To Lenzburg 11th Century: Donated to Beromünster Abbey
?: To Murbach Abbey
1291: Sold to Habsburg; with Nidwalden became a founding member of the Swiss League
1324: Imperial immediacy
1648: Left Empire as member of Swiss Confederation
CoA Ochsenhausen, BW.svg Ochsenhausen 1391: Abbey Swab SP 1093: Priory of St. Blaise's Abbey 1391: Independent abbey
1495: Imperial immediacy
1803: To Schaesberg-Retersbeck (Tannheim), Sinzendorf (Winterrieden) and Metternich-Winneburg and Beilstein (remainder)
1806: All to Württemberg
CoA Ochsenstein Lordship.svg Ochsenstein Lordship n/a n/a 1186: First mentioned; branch of Geroldseck 1391: Quarter of Ochsenstein sold to the Palatinate
1485: Extinct; to Zweibrücken-Bitsch
CoA Odenheim Abbey.svg Odenheim and Bruchsal Abbey
1503: Provostry
Upp Rhen RP 1110-8 1161: Imperial immediacy
1496: HRE Lord
1503: Converted to provostry
1507: Relocated to Bruchsal
1803: To Baden
CoA Oettingen County.svg Oettingen (Öttingen) County n/a n/a 1147: First mentioned; related to the House of Hohenstaufen 1363: Acquired Spielberg
1418: Partitioned into Oettingen-Oettingen and Oettingen-Wallerstein
CoA Oettingen County.svg Oettingen-Baldern County Swab SC 1623: Partitioned from Oettingen-Wallerstein 1798: Extinct; to Oettingen-Wallerstein
CoA Oettingen County.svg Oettingen-Flochberg County Swab SC 1442: Partitioned from Oettingen-Wallerstein 1522: Partitioned into itself and Oettingen-Wallerstein
1548: Extinct; to Oettingen-Wallerstein
CoA Oettingen County.svg Oettingen-Oettingen County
1674: Principality
Swab SC 1418: Partitioned from Oettingen 1440: Extinct; to Oettingen-Wallerstein
1442: Partitioned from Oettingen-Wallerstein
1674: HRE Prince
1731: Extinct; to Oettingen-Wallerstein
CoA Oettingen County.svg Oettingen-Spielberg County
1734: Principality
Swab SC / PR 1623: Partitioned from Oettingen-Wallerstein 1734: HRE Prince
1803: Bench of Princes
1806: To Bavaria
1810: Parts to Württemberg
CoA Oettingen County.svg Oettingen-Wallerstein County
1774: Principality
Swab SC / PR 1418: Partitioned from Oettingen 1442: Partitioned into Oettingen-Oettingen, itself and Oettingen-Flochberg
1486: Extinct; divided between Oettingen-Flochberg and Oettingen-Oettingen
1522: Partitioned from Oettingen-Flochberg
1549: Extinct; to Frederick V of Oettingen-Oettingen by marriage, who assumed the name Oettingen-Wallerstein
1623: Partitioned into Oettingen-Spielberg, itself and Oettingen-Baldern
1774: HRE Prince
1803: Bench of Princes
1806: To Bavaria
1810: Parts to Württemberg
CoA Offenburg, BW.svg Offenburg Imperial City Swab SW before 1240: Imperial Free City 1803: To Baden
Armoiries Walpode de Bassenheim.svg Olbrück Lordship Low Rhen WE 1190: Purchased by Wied from the Archbishopric of Cologne 1244: Wied extinct; Olbrück was divided and shared ultimately with a dozen families, often in dispute with each other
1555: All to Waldbott von Bassenheim
1788: Along with Pirmont was used to give access to the Westphalian counts
1794: To France
1815: To Prussia
BlasonChristian Ier (1143-1167), comte d'Oldenbourg.svg 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
1777: Duchy
1815: Grand Duchy
Low Rhen PR 1108: First mentioned; fief of Saxony 1143: Partitioned into Wildeshausen and itself
1181: Imperial immediacy
c. 1278: Partitioned into itself and Oldenburg-Delmenhorst
1463: Partitioned into itself and Oldenburg-Delmenhorst
1577: Partitioned into itself and Oldenburg-Delmenhorst
1667: Extinct; to Denmark
1773: To Paul of Russia; then to Frederick Augustus of Lübeck
1777: HRE Duke
1810: To France
1814: Restored
1815: Grand Duke
BlasonChristian Ier (1143-1167), comte d'Oldenbourg.svg Oldenburg-Delmenhorst County Low Rhen PR c. 1278: Partitioned from Oldenburg 1447: Extinct; to Oldenburg
1463: Partitioned from Oldenburg
1482: To Oldenburg
1483: To the Bishopric of Münster
1484: Extinct
1547: To Oldenburg
1577: Partitioned from Oldenburg
1647: Extinct; to Oldenburg
Blason Raymond IV des Baux.svg Orange County
1173: Principality
none none 11th century: Independence from Provence 1121: Extinct in male line; to Aumelas by marriage
1173: Extinct; to Baux by marriage; HRE Prince
1193: To Baux-Orange
1289: Acquired Baux
1417: Extinct; to Chalon-Arlay
1544: To William of Nassau-Dillenburg, who took the name Orange-Nassau
1702: To France, who enfoeffed Francis Louis of Conti
1713: To France, attached to the Dauphiné
Blason famille de Nassau.svg Orange-Nassau Principality none none 1544: Created when William of Nassau-Dillenburg inherited Orange 1702: Extinct; succession dispute between Nassau-Dietz who took the name Orange-Nassau, and Prussia. Orange itself seized by France
1739: Acquired Nassau-Hadamar and Nassau-Dillenburg
1743: Acquired Nassau-Siegen
1747: Acquired the Netherlands
1795: Left bank territory to France
1806: United with Nassau-Orange-Fulda; then dispersed between various states
1815: King of the Netherlands and Grand Duke of Luxembourg
CoA Everstein Family.svg Orlamünde County n/a n/a 1032-1040: Mentioned, to counts of Orlamünde By 1060: Extinct; to Weimar
1062: To Weimar-Orlamünde
Blason fam it Orsini 02.svg 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: First mentioned
1681: Granted personalist vote in the Bench of Franconian Counts
1684: Adopted style of Orsini-Rosenberg
Armoiries Saint-Empire bicéphale.svg Ortenau (Mortenau) Landvogtei n/a n/a 763: First mentioned; gau county of the Carolingian Empire 1007: To the Bishopric of Bamberg
?: To Zähringen
1218: Seized by the Emperor
1261: To Geroldseck
The Ortenau disintegrated soon after, though the title was held variously by Bach, Fürstenberg, Mörsperg, Ochsenstein and Oettingen, amongst others
1803: Much of the Ortenau to Breisgau-Modena and Baden
1819: All to Baden
CoA Ortenburg County, Carinthia.svg Ortenburg in Carinthia County n/a n/a 1072: First mentioned; possibly related to Grögling-Hirschberg 1306: Imperial immediacy
1418: Extinct; to Celje
1456: Extinct; to Austria
CoA Ortenburg County, Bavaria.svg Ortenburg (Ortenberg)
Count of Ortenburg, Count and Lord of Tambach
County Bav WT 1135: Partitioned from Carinthia in the former lands of Vohburg-Passau 1145: Acquired advocacies around Passau
1158: Acquired much of Vornbach
1163: Acquired Murach
1173: Acquired Kraiburg and Marquartstein
1188: Acquired Sulzbach; partitioned into Ortenburg-Kraiburg and Ortenburg-Ortenburg
1272: Remaining territories held by Ortenburg-Ortenburg; henceforth known as Ortenburg
1319: Acquired Wildenegg
1395: Partitioned into Ortenburg-Dorfbach, Ortenburg-Neuortenburg and Ortenburg-Altortenburg
1460: Reunited by Ortenburg-Neuortenburg
1517: Acquired Mattighofen
1805: To Bavaria; received in exchange Tambach
1806: Tambach to Bavaria
CoA Ortenburg County, Bavaria.svg Ortenburg-Altortenburg County n/a n/a 1395: Partitioned from Ortenburg 1416: Acquired Niederaltaich Abbey
1446: Extinct; to Ortenburg-Neuortenburg
CoA Ortenburg County, Bavaria.svg Ortenburg-Dorfbach County n/a n/a 1395: Partitioned from Ortenburg 1431: Imperial immediacy
1460: Extinct; to Ortenburg-Neuortenburg
CoA Ortenburg County, Bavaria.svg Ortenburg-Kraiburg County n/a n/a 1188: Partitioned from Ortenburg 1200: Acquired Rotter
1208: Acquired County Palatine of Bavaria and Neuburg
1217: Acquired Griesbach-Waxenberg
1239: Lost Ramsau and territories in Brixen to Regensburg
1248: Extinct in male line; lost County Palatine of Bavaria
1256: To Werdenberg-Sargans by marriage
1259: Sold to Lower Bavaria
CoA Ortenburg County, Bavaria.svg Ortenburg-Murach County n/a n/a 1238: Partitioned from Ortenburg-Ortenburg 1268: Made fief of Upper Bavaria
1272: Sold to Upper Bavaria
1285: Extinct
CoA Ortenburg County, Bavaria.svg Ortenburg-Neuortenburg County n/a n/a 1395: Partitioned from Ortenburg 1445: Acquired Saldenburg
1460: Renamed to Ortenburg
CoA Ortenburg County, Bavaria.svg Ortenburg-Ortenburg County n/a n/a 1188: Partitioned from Ortenburg 1217: Acquired Neustadt
1229: Imperial immediacy
1238: Partitioned into itself and Ortenburg-Murach
1257: Extinct; to Gebhard of Ortenburg-Murach
1272: Renamed to Ortenburg
CoA Osnabrück Bishopric.svg Osnabrück Bishopric Low Rhen EC 783: Fief of Saxony 1180: Fief of Tecklenburg
1226: HRE Prince of the Empire
1236: Imperial immediacy
After 1648: Osnabrück alternately ruled by a Protestant Administrator and Catholic Prince-Bishop
1803: To Hanover
1806: To Prussia
1807: To Westphalia
1810: To France
1815: To Hanover
CoA Osterberg Barony.svg Osterberg Lordship
1712: Barony
n/a n/a 1225: First mentioned; to Elchingen Abbey by 1448: Sold to Ochsenhausen Abbey
1455: Sold to Rechberg-Hohenrechberg
1460: To Rechberg-Kronburg
1577: To Rechberg-Osterberg
1679: Sold to Meyer von Röfingen auf Bühl who assumed the name Osterberg
1712: HRE Barony
1806: To Bavaria
CoA Oettingen County.svg Öttingen
See: Oettingen
CoA Ottobeuren Abbey.svg Ottobeuren Abbacy Swab SP 764 1299: Imperial immediacy
1624: Fief of the Bishopric of Augsburg
1710: Imperial immediacy
1802: To Bavaria
CoA Overijssel Lordship.svg Overijssel Lordship Burg n/a 11th Century: Territory nominally ceded to the Bishopric of Utrecht as the Oversticht 1336: To Guelders
1347: To the Bishopric of Utrecht
1528: To the Spanish Netherlands; Burgundian Circle
1580: To the Netherlands
1795: To the Batavian Republic
1810: To France
1815: To the Netherlands

References[edit]