This is a list of states, which were part of the Holy Roman Empire at any time within its existence between 962 and 1806.

Warning: The list is extremely incomplete. A full list of members of the Reichstag as of 1792 can be found here: List of Reichstag participants (1792). A list of Imperial Circle Estate members at the same time can be found at Imperial Circle Estates. A full list of every state belonging to the Holy Roman Empire at any time would be an impossible project.

Table of contents
1 Ecclesiastical States
2 Lands of the Bohemian Crown
3 Territories of Old Princely Families
4 Territories of New Princely Families
5 Territories Raised to Princely Levely by the Reichsdeputationshauptschluss of 1803

Ecclesiastical States

  • Archbishopric of Mainz (moved to Regensburg 1803)
  • Archbishopric of Cologne (secularized 1803, to Hesse-Darmstadt)
  • Archbishopric of Trier (secularized 1803, to Nassau)
  • Archbishopric of Salzburg (secularized 1803, became secular Electorate)
  • Archbishopric of Bremen (secularized 1648, to Sweden)
  • Archbishopric of Magdeburg (secularized 1648, to Brandenburg)
  • Archbishopric of Besançon (annexed to France by 1792)
  • Archbishopric of Regensburg (created from old Bishopric of Regensburg and Archbishopric of Mainz, 1803)
  • The Teutonic Order
  • Bishopric of Bamberg (secularized 1803, to Bavaria)
  • Bishopric of Würzburg (secularized 1803, to Bavaria)
  • Bishopric of Worms (secularized 1803)
  • Bishopric of Eichstädt (secularized 1803)
  • Bishopric of Speyer (secularized 1803)
  • Bishopric of Strassburg (secularized 1803)
  • Bishopric of Konstanz (secularized 1803)
  • Bishopric of Augsburg (secularized 1803, to Bavaria)
  • Bishopric of Hildesheim (secularized 1803)
  • Bishopric of Paderborn (secularized 1803)
  • Bishopric of Freising (secularized 1803)
  • Bishopric of Regensburg (became an Archbishopric in 1803)
  • Bishopric of Passau (secularized 1803, to Bavaria)
  • Bishopric of Trent (secularized 1803, to Austria)
  • Bishopric of Brixen (secularized 1803)
  • Bishopric of Basel (secularized 1803)
  • Bishopric of Münster (secularized 1803, to Prussia)
  • Bishopric of Osnabrück (secularized 1803)
  • Bishopric of Liège (annexed by France 1795)
  • Bishopric of Lübeck (secularized 1803)
  • Bishopric of Chur
  • Bishopric of Fulda (an abbacy to 1752, secularized 1803, to Prince of Orange)
  • Bishopric of Halberstadt (secularized 1648, to Brandenburg)
  • Bishopric of Verden (secularized 1648, to Sweden)
  • Bishopric of Minden (secularized 1648)
  • Bishopric of Schwerin
  • Bishopric of Kammin
  • Bishopric of Ratzeburg
  • Bishopric of Meissen
  • Bishopric of Naumburg-Zeitz
  • Bishopric of Merseburg
  • Abbacy of Kempten
  • Abbacy of Ellwangen
  • The Order of St. John
  • Abbacy of Berchtesgaden
  • Abbacy of Weissenberg
  • Abbacy of Prüm
  • Abbacy of Stablo
  • Abbacy of Korvey
  • Abbacy of Baindt
  • Abbacy of Elchingen
  • Abbacy of Gengenbach
  • Abbacy of Gutenzell
  • Abbacy of Heggbach
  • Abbacy of Irsee
  • Abbacy of Kaisheim
  • Abbacy of Marchtal
  • Abbacy of Neresheim
  • Abbacy of Ochsenhausen
  • Abbacy of Petershausen
  • Abbacy of Roggenburg
  • Abbacy of Roth
  • Abbacy of Rottenmünster
  • Abbacy of Salmansweiler
  • Abbacy of Schussenried
  • Abbacy of Söflingen
  • Abbacy of Ursperg
  • Abbacy of Weingarten
  • Abbacy of Weissenau
  • Abbacy of Wettenhausen
  • Abbacy of Zwiefalten
  • Abbacy of Bruchsal and Odenheim
  • Abbacy of Buchau
  • Abbacy of Burtscheid
  • Abbacy of St. Kornelimünster
  • Abbacy of Essen
  • Abbacy of Gandersheim
  • Abbacy of St. Georg in Isny
  • Abbacy of Gernrode
  • Abbacy of Herford
  • Abbacy of Niedermünster in Regensburg
  • Abbacy of Obermünster in Regensburg
  • Abbacy of Quedlinburg
  • Abbacy of Thorn
  • Abbacy of St. Ulrich and St. Afra in Augsburg
  • Abbacy of Werden

Lands of the Bohemian Crown

Territories of Old Princely Families

  • Anhalt
    • Anhalt-Zerbst
    • Anhalt-Dessau
    • Anhalt-Köthen
    • Anhalt-Bernburg
  • Arenberg
  • Austria (Margraviate 960-1155; Duchy 1155-1453; Archduchy 1453-1806)
  • Baden
    • Baden-Baden
    • Baden-Durlach
    • Baden-Hochberg
    • Baden-Saussenberg
  • Bavaria (Duchy, Electorate from 1623)
    • Upper Bavaria
    • Lower Bavaria
    • Bavaria-Ingolstadt
    • Bavaria-Landshut
    • Bavaria-Munich
  • Brabant
  • Brandenburg
    • Brandenburg-Ansbach
    • Brandenburg-Bayreuth
    • Brandenburg-Kulmbach
  • Brunswick-Lüneburg
    • Brunswick-Calenberg
    • Brunswick-Celle
    • Brunswick-Wolfenbüttel
    • Brunswick-Grubenhagen
    • Brunswick-Göttingen
  • Carinthia (Duchy)
  • Carniola (Duchy)
  • Cilly
  • Gelders
  • Henneberg
  • Hesse
    • Hesse-Kassel
    • Hesse-Darmstadt
    • Hesse-Marburg
    • Hesse-Rheinfels
  • Holstein
    • Holstein-Gottorp
      • Holstein-Gottorp-Oldenburg
    • Holstein-Glückstadt
  • Jülich
  • Jülich-Kleve-Berg
  • Kleve
  • Leuchtenberg
  • Limburg
  • Lorraine
  • Luxemburg
  • Mantua
  • Mecklenburg
    • Mecklenburg-Schwerin
    • Mecklenburg-Güstrow
    • Mecklenburg-Strelitz
  • Meissen
  • Milan
  • Modena
  • Palatinate (County Palatine, Electorate)
    • Palatinate-Simmern
    • Palatinate-Kaiserlautern
    • Palatinate-Neuburg
    • Palatinate-Sulzbach
    • Palatinate-Veldenz
    • Palatinate-Zweibrücken
    • Palatinate-Zweibrücken-Birkenfeld
  • Pomerania
    • Hither Pomerania
    • Further Pomerania
  • Savoy
  • Saxony (Duchy, Electorate)
    • Saxe-Wittenberg
    • Saxe-Lauenburg
    • Saxe-Coburg
    • Saxe-Gotha
    • Saxe-Altenburg
    • Saxe-Eisenach
    • Saxe-Eisenberg
    • Saxe-Zeitz
    • Saxe-Merseburg
    • Saxe-Römhild
    • Saxe-Jena
    • Saxe-Meiningen
    • Saxe-Hildburghausen
    • Saxe-Saalfeld
  • Styria (Duchy)
  • Thuringia
  • Tirol (Princely County)
  • Württemberg
    • Württemberg-Mömpelgard

Territories of New Princely Families

  • Hohenzollern-Hechingen (1653)
  • Eggenberg, held Gradisca (1653, extinct 1717)
  • Lobkowitz, held Sternstein (1653)
  • Salm (1654)
    • Salm-Salm
    • Salm-Kyrburg
  • Dietrichstein, held Trasp (1654)
  • Piccolomini, no immediate territories (1654, extinct 1656)
  • Nassau
    • Nassau-Hadamar and Nassau-Siegen (1654)
    • Nassau-Dillenburg and Nassau-Dietz (1654)
  • Auersperg, held Thengen (1654)
  • Portia, no immediate territories (1664, extinct 1665)
  • East Frisia (1667, to Brandenburg 1744)
  • Fürstenberg (1667)
  • Schwarzenberg (1674)
  • Waldeck-Eisenberg (1686, extinct 1692)
  • Churchill-Marlborough, held Mindelheim (1705, extinct 1714)
  • Lamberg, held Leuchtenberg (1709, extinct 1714)
  • Liechtenstein, held Schellenberg-Vaduz (1713)
  • Thurn und Taxis, held Eglingen and Sheer-Friedberg (1754)
  • Schwarzburg (1754)

Territories Raised to Princely Levely by the Reichsdeputationshauptschluss of 1803

  • Ortenau (for the House of Modena-Este)
  • Nassau-Usingen
  • Nassau-Weilburg
  • Hohenzollern-Sigmaringen
  • Waldeck
  • Löwenstein-Wertheim-Rosenberg
  • Öttingen
    • Öttingen-Spielberg
    • Öttingen-Wallerstein
  • Solms-Braunfels
  • Hohenlohe
    • Hohenlohe-Neuenstein
    • Hohenlohe-Schillingsfürst
    • Hohenlohe-Bartenstein
  • Isenburg-Birstein
  • Kaunitz-Rietberg
  • Reuss-Greiz
  • Leiningen
  • Ligne
  • Looz-Corswarem

StateDate of foundationDate of dissolutionNotes
Anhalt157016031603 divided into five separate states: Anhalt-Dessau, Anhalt-Bernburg, Anhalt-Köthen, Anhalt-Zerbst and Anhalt-Plötzkau
Ansbach??1792also called Brandenburg-Ansbach
Baden1112 (1061?)--1535-1771 divided into Baden-Baden and Baden-Durlach
Bavaria---- 
Bentheim1050-- 
Berg11011614after 1521 in personal union with Mark
Brandenburg11341701replaced by Prussia
Brunswick-Lueneburg12671705 
Calenberg??1636replaced by Hanover
Hanover1636--replaced Calenberg
Hesse126415671567 divided into four separate states: Hesse-Kassel, Hesse-Marburg, Hesse-Rheinfels, Hesse-Darmstadt
Lauenburg12601689also called Saxony-Lauenburg
Lippe1528--divided in 1613, followed by Lippe-Detmold and some short-lived successor states
Mark11601614from 1368 called Mark-Cleves; after 1521 in personal union with Berg
Mecklenburg13481621replaced by Mecklenburg-Güstrow and Mecklenburg-Schwerin
Mecklenburg-Güstrow16211695replaced by Mecklenburg-Strelitz
Mecklenburg-Schwerin1621-- 
Mecklenburg-Strelitz1701--replaced Mecklenburg-Güstrow
Minden??1648annexed by Brandenburg
Nassau11601255divided in 1255, not reunited until 1806
Oldenburg??-- 
Prussia1525--the old duchy of Prussia was replaced in 1701 by the Brandenburg-based kingdom of Prussia
Saxony (1)??1260replaced by Lauenburg and Saxony-Wittenberg
Saxony (2)1423--by uniting the earldoms of Meissen and Saxony-Wittenberg
Saxony-Wittenberg12961422 (or 1423?) 
Schaumburg12th century--in 1640 secession of Schaumburg-Lippe
Schaumburg-Lippe1640-- 
Steinfurt14541804was a part of Bentheim before 1454 and after 1804
Tecklenburg??1263annexed by Bentheim
Württemberg1135--