This is a list of states in the Holy Roman Empire beginning with the letter A.for Ansbach see: Brandenburg-Ansbach Some historians mark the beginning of the Empire as 800, with the coronation of Frankish king Charlemagne ("Charles the Great").
Name Type Imperial circle Imperial diet History Aachen Free Imperial City Low Rhen RH 1166: Free Imperial City1794: To France1815: to Prussia Aalen Free Imperial City Swab SW 1241: Founded by Hohenstaufenby 1340: To Oettingen1359: Sold to Württemberg1360: Free Imperial City1500: To Swabian Circle1802: To Duchy of Württemberg Aalst County 964: First mentioned1056: Extinct; to Flanders despite Brabantian claims to the territory Abensberg-Traun (Apensberg-Traun) Lordship1653: County Swab SW 1114: First mentioned; ministerialis of Austria1653: HRE Count1656: Joined the Swabian Circle (personalist)1662: Acquired Eglofs; joined the Bench of Counts of Swabia1804: Sold Eglofs to Windisch-Graetz Elder Line Achalm County 1040: First mentioned; brother of Urach1098: Extinct; to Urach1250: To Fürstenberg AhrSee: Are County (9th century) Imperial Immediacy 1107: First mentioned 992: as part of the Carolingian Empire 1107: Achieved Imperial Immediacy 1144:County divided into Are-Are, Are-nürburg, Are-hochstaden 1246: Annexed by Cologne Ahrgau County Originally a gau county of the Carolingian EmpireSee: Are1107: Separated from Prüm Abbey1246: Annexed to the Archbishopric of Cologne Albeck (Alpeck) Lordship 1081: First mentioned; ministerialis of Swabia1245: To Burgau1289: To Werdenberg-Sargans1312: To Werdenberg-Trochtelfingen1349: To Werdenberg-Alpeck1383: Sold to Ulm AldenburgHRE Count of Aldenburg, Lord of the Free Lordship of Knyphausen, Noble Lord of Varel Lordship1651: Barony1667: County 1646: Anton, illegitimate child of Anthony Günther of Oldenburg, ennobled1651: HRE Baron1667: Acquired Knyphausen and Varel; HRE Count1738: Extinct; to Bentinck by marriage All Saints (Allerheiligen; in Schaffhausen) Abbacy Swab SP 1049: Abbey established1080: Acquired Schaffhausenc. 1122: Acquired Hiltensweiler1190: Schaffhausen independent1529: To Schaffhausen; monastery suppressed Alsace County1130: Landgraviate 1125: Partitioned from County of Saarbrücken1130: HRE Landgrave1189: Also known as Counts of Werdc. 1340: Sold to Oettingen1359: Sold to Strasbourg Alsace and Burgundy Bailiwick None SW 1212: Bailiwick of the Teutonic Order1805: Divided between Baden and Württemberg Altbruchhausen County 1234: Partitioned from Bruchhausen1335: To Tecklenburg1338: Sold to Hoya1354: Extinct Altena-Berg (Altena-Marck; Altena-Mark) County 1180: Partitioned from Berg-Altena1226: Renamed to Mark Altena-Isenberg County 1180: Partitioned from Berg-Altena1126: Lands given to Altena-Berg (Mark)1243: Restored to a small part of the former county1253: Renamed to Isenberg-Limburg Altenbaumburg (Altenbaumberg) Raugraviate 1253: Partitioned from Baumburg1366: Most sold to the Palatinate1385: Extinct; remainder to the Palatinate Altensteig Lordship 1100: First mentioned; to Knights of Altensteig1280: To Hohenberg-Nagold1318: To Hohenberg-Wildberg1355: To Hohenberg-Altensteig1398: Sold to Baden1603: Sold to Württemberg An der Etsch (on the Adige) Bailiwick Aust 1269: Bailiwick of the Teutonic Order1805: To Bavaria; attached to the Tyrol1814: To Austria Andechs (Andechs-Meran from 1180) County1180: Duchy 1132: Renamed from Diessen1157: Acquired Wolfratshausen1173: Acquired Istria1180: Acquired Merania1208: Most possessions in Bavaria and the Tyrol to Bavaria1211: Acquired the County Palatine of Burgundy1248: Extinct; County Palatine of Burgundy to Hugh of Chalon; remainder to Bavaria Andlau Abbey 1681: To France Anhalt Lordship1212: County1218: Princely County1250: Principality Upp Sax PR 1173: Independence from Saxony1212: HRE Count1218: HRE Princely Count1250: HRE Prince1252: Partitioned into Anhalt-Aschersleben, Anhalt-Bernburg and Anhalt-Köthen1570: Reunited by Anhalt-Roßlau1603: Partitioned into Anhalt-Dessau, Anhalt-Bernburg, Anhalt-Köthen, Anhalt-Plötzkau and Anhalt-Zerbst Anhalt-Aschersleben Principality 1252: Partitioned from Anhalt1315: Extinct; Succession dispute between Anhalt-Bernburg and the Bishopric of Halberstadt1322: To the Bishopric of Halberstadt Anhalt-Bernburg Principality Upp Sax PR 1252: Partitioned from Anhalt1468: Extinct; divided between Anhalt-Köthen and Anhalt-Zerbst1603: Partitioned from Anhalt1630: Partitioned into itself and Anhalt-Harzgerode1707: Partitioned into itself and Anhalt-Zeitz-Hoym Anhalt-Bernburg-Schaumburg-Hoym Principality Low Rhen WE 1727: Created from union of Anhalt-Zeitz-Hoym with Holzapfel1806: Holzapfel to Nassau1812: Extinct; to Anhalt-Dessau Anhalt-Dessau Principality Upp Sax PR 1474: Partitioned from Anhalt-Zerbst1551: Partitioned into Anhalt-Zerbst, Anhalt-Roßlau and itself1570: Extinct; to Anhalt-Roßlau1603: Partitioned from Anhalt Anhalt-Dornburg Principality 1667: Appanage created in Anhalt-Zerbst1742: Extinct; appanage abolished Anhalt-Harzgerode Principality Upp Sax PR 1630: Partitioned from Anhalt-Bernburg1709: Extinct; to Anhalt-Bernburg Anhalt-Köthen Principality Upp Sax PR 1252: Partitioned from Anhalt1396: Partitioned into itself and Anhalt-Zerbst1562: Extinct; to Anhalt-Dessau1603: Partitioned from Anhalt1665: Inherited by Anhalt-Plötzkau1765: Appanage Anhalt-Köthen-Pless established Anhalt-Köthen-Pless Principality 1765: Appanage line created in Anhalt-Köthen1767: Official investiture of Pless by Prussia Anhalt-Mühlingen Principality 1667: Appanage created in Anhalt-Zerbst1714: Extinct; appanage abolished Anhalt-Plötzkau Principality Upp Sax PR 1603: Partitioned from Anhalt1665: Inherited and renamed to Anhalt-Köthen Anhalt-Roßlau Principality Upp Sax PR 1551: Partitioned from Anhalt-Dessau1570: Renamed to Anhalt Anhalt-Zeitz-Hoym Principality Upp Sax 1718: Partitioned from Anhalt-Bernburg1727: Renamed to Anhalt-Bernburg-Schaumburg-Hoym Anhalt-Zerbst Principality Upp Sax PR 1396: Partitioned from Anhalt-Köthen1474: Partitioned into itself and Anhalt-Dessau1562: Extinct; to Anhalt-Dessau1603: Partitioned from Anhalt1667: Appanages Anhalt-Mühlingen and Anhalt-Dornburg created1796: Extinct; to Anhalt-Dessau Anholt Lordship1621: County Low Rhen WF 1169: Fief of Utrecht1234: To Zuylen-Anholt as fief of Utrechtbetw. 1317-1343: Imperial immediacy1399: To Gemen1402: To Bronchhorst-Batenburg1621: HRE Count1641: to Salm-Salm1653: Joined the Westphalian Counts1810: To France1815: To Prussia Antwerp Margraviate Burg 974: Established994: Acquired Toxandria1106: United with Lower Lorraine1190: Title to Brabant Aosta County1310: HRE Duchy c. 999: To the Bishopric of Aosta; fief of the Kingdom of Arles1026: To Savoy1310: HRE Duke1539: To France1563: Restored to Savoy1810: To France1814: Restored to Piedmont-Sardinia Appenzell Canton 11th Century: To St Gall's Abbey1408: Independence from St Gall's Abbey1513: Member of the Old Swiss Confederacy1597: Partitioned into Appenzell Innerrhoden and Appenzell Ausserrhoden Appenzell Ausserrhoden (Appenzell Outer Rhodes) Canton 1597: Partitioned from Appenzell1648: Left the Empire as part of Switzerland Appenzell Innerrhoden (Appenzell Inner Rhodes) Canton 1597: Partitioned from Appenzell1648: Left the Empire as part of Switzerland Are (Ahr) County 992: First mentioned in the Ahrgau1107: Imperial immediacy1144: Partitioned into Are-Are, Are-Nürburg and Are-Hochstaden Are-Are (Are, Ahr) County 1144: Partitioned from Are1210: Extinct; to Are-Nürburg Are-Nürburg (Nürburg) County 1144: Partitioned from Are1225: Partitioned into itself and Neuenahr1290: Extinct; to the Archbishopric of Cologne Are-Hochstaden (Hochstaden) County 1144: Partitioned from Are1149: Acquired Hochstaden by marriage1162: Partitioned into itself and Are-Wickrath1246: To the Archbishopric of Cologne1265: Extinct Are-Wickrath (Wickrath, Wickenrode) County 1162: Partitioned from Are-Hochstaden1301: Extinct; to Guelders Arenberg (Aremberg) Duchy El Rhin PR c. 1177c. 1177: Lords of Arenberg first mentioned; burgraves of Cologne within the Archbishopric of Cologne1220: Partitioned into itself and Wildenburg1279: Sold burgraviate to the Archbishops1299: Lords of Arenberg extinct; to County of Mark1328: To Mark-Arenberg1549: Inherited by Ligne which assumed the name 'Arenberg'1576: Princely County1580: HRE Council of Princes1644: Duchy1795: Duchy ceded to France1803: Obtained Meppen and Vest Recklinghausen1810: Mediatised Arlon Countyc. 1167: Margraviate 950c. 1167: HRE Margrave1214: United with Luxembourg1221: To Limburg Arnsberg County 1050: First mentioned; to Werlc. 1070: To Werl-Arnsberg1124: Extinct in male line1132: To Cuijk-Arnsberg by marriage1368: Sold to Cologne who added it to the Duchy of Westphalia Arnstein County 1131: Branch of Steußlingen established a line at Arnstein1211: Side line Lindow-Ruppin established1226: Partitioned into itself and Barbyc. 1294: Given to Falkenstein1326: Extinct1334: To Regenstein1387: Sold to Mansfeld Younger Line Artois County Burg 898: To Flanders1180: To France1237: Artois established as appanage1350: To the Duchy of Burgundy1477: To France1483: To the Burgundian Netherlands1659: To France Aschaffenburg Principality 10th Century: To Mainz1803: Made principality of the Archbishopric of Regensburg1806: To the Grand Duchy of Frankfurt1814: To Bavaria Aspremont-Lynden Barony1676: County Low Rhen WE 1307: First mentioned1590: Purchased Rekem (Reckheim)1623: Imperial Estate1676: HRE Count1793: To France1802: Compensated with Baindt1806: To Württemberg Auersperg Lordship1550: Barony1653: County1664: Princely County Aust PR 1162: First mentioned, in Carniola1550: HRE Baron1630: HRE Count1653: HRE Prince1654: Bench of Secular Princes1654: Acquired Silesia-Munsterberg and Franckenstein1663: Acquired Tengen1664: HRE Princely Count1791: Acquired Gottschee1806: Tengen to Baden Augsburg Bishopric Swab EC 4th Century: Diocese established8th Century: First mention of historical mention of diocesec. 888: Imperial immediacy1276: City of Augsburg acquired independence1802: To Bavaria Augsburg Free Imperial City Swab SW 1276: Free Imperial City1806: To Bavaria Austria 1156: Duchy1453: Archduchy Aust EC 833: Established, part of the Duchy of BavariaMargraviate976: Separated from Bavaria1156: HRE Duke1192: Acquired Styria1379: Partitioned into itself (Albertine Line) and Inner Austria (Leopoldine Line)1453: HRE Archduke1457: Inherited by Inner Austria (Leopoldine Line)1804: Assumed rank of Empire Austria Bailiwick Aust 1260: Bailiwick of the Teutonic Order1805: To Austria
References