This is a list of states in the Holy Roman Empire beginning with the letter Z. 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 Zähringen Duchy n/a n/a 962: First mentioned; Gau Counts in the Breisgau1092: Claimed the Duchy of Swabia1098: Renounced Swabia; assumed the title Duke of Zähringen1112: Side line Baden founded1152: Partitioned into itself and Teck1218: Extinct; dispersed between numerous families and free cities Zeeland County Burg n/a 1012: Given to Flanders1167: West Zeeland in condomonium between Flanders and Holland1256: West Zeeland to Holland1303: West Zeeland to Hainaut; rest to Namur1323: All to Hainaut1432: To Burgundy1477: To the Burgundian Netherlands1556: To the Spanish Netherlands1581: Joined the Netherlands1648: Left the Empire as part of the Netherlands Zell am Harmersbach Imperial City Swab SW 1139: First mentioned; to Zähringen1218: To Swabia1256: To Hohengeroldseck and Strasbourg1333: To Baden14th Century: Free Imperial City1718: Harmersbach made Free Imperial Valley1803: To Baden Ziegenhain County n/a n/a 1148: First mentioned1258: Partitioned into itself and Nidda1333: Acquired Nidda1450: Extinct; succession dispute between Hesse and Hohenlohe-Weikersheim. Ziegenhain was occupied by Hesse despite the legal succession of Hohenlohe1495: Confirmed to Hesse with compensation paid to Hohenlohe-Weikersheim Zimmern Lordship1538: County Swab SC 1080: First mentioned1354: Acquired Meßkirch1415: Acquired Wildenstein1441: Partitioned into itself and Zimmern-Herrenzimmern1462: Acquired Oberndorf1488: To Werdenberg-Sigmaringen1503: Restored1508: Partitioned into Zimmern-Meßkirch and Zimmern-Wildenstein1575: Reunited by Zimmern-Meßkirch1594: Extinct; Oberndorf to Austria, Wald to Rottweil, rest to Helfenstein-Gundelfingen Zimmern-Herrenzimmern Lordship1538: County Swab SC 1445: Partitioned from Zimmern1512: To William Werner of Zimmern1538: HRE Count1575: Extinct; to Zimmern-Meßkirch Zimmern-Meßkirch Lordship1538: County Swab SC 1508: Partitioned from Zimmern1538: HRE Count1575: Renamed to Zimmern Zimmern-Wildenstein Lordship1538: County Swab SC 1508: Partitioned from Zimmern; originally at Oberndorf1514: Acquired sole rule of Wildenstein1538: HRE Count1554: Extinct; to Zimmern-Meßkirch Zollern Lordship1111: County n/a n/a 1061: First mentioned1111: HRE Count 1144: Partitioned into itself and Hohenberg1192: Acquired Nuremberg1218: Partitioned into itself and Nuremberg1262: Acquired Schalksburg1288: Partitioned into Hohenzollern and Zollern-Schalksburg Zollern-Schalksburg County n/a n/a 1288: Partitioned from Zollern1403: Sold to Württemberg1408: Extinct Zug Imperial Valley n/a n/a 1264: All to Habsburg1352: Joined the Swiss Confederation1415: Free Imperial Valley1648: Left the Empire as part of Switzerland Zürich Imperial City n/a n/a 853: To Fraumünster Abbey1063: Under advocacy of Lenzburg1173: Under advocacy of Zähringen1218: Free Imperial City1351: Joined the Swiss Confederation1440: Expelled from the Swiss Confederacy1450: Re-admitted1648: Left the Empire as part of Switzerland Zutphen Lordship1101: County Burg n/a 1025: Mentioned; fief of Lower Lotharingia1046: Made fief of the Bishopric of Utrecht1101: HRE Count1118: Extinct in male line1138: To Guelders1371: To Jülich-Guelders1423: To Guelders1538: To Jülich-Cleves-Berg1543: To the Spanish Netherlands1579: Joined the Netherlands1648: Left the Empire as part of the Netherlands Zweibrücken County n/a n/a 1182: Partitioned from Saarbrücken1263: Side line Zweibrücken-Eberstein created1286: Partitioned into Zweibrücken-Zweibrücken and Zweibrücken-Bitsch Zweibrücken-Bitsch County n/a n/a 1286: Partitioned from Zweibrücken; originally at Lemberg1297: Acquired Bitsch1485: Side line Zweibrücken-Bitsch-Ochsenstein established1559: Acquired Ochsenstein1570: Extinct; to Hanau-Lichtenberg in succession dispute with Leiningen-Westerburg-Leiningen1572: To Lorraine1573: Leiningen claim sold to Lorraine1604: Lemberg given to Hanau-Lichtenberg Zweibrücken-Bitsch-Ochsenstein County n/a n/a 1485: Created when Henry I of Zweibrücken-Bitsch acquired Ochsenstein by marriage1559: Extinct; to Zweibrücken-Bitsch Zweibrücken-Eberstein County n/a n/a 1263: Created when Simon I of Zweibrücken acquired half of Eberstein Elder Line1314: Extinct; to the Bishopric of Speyer Zweibrücken-Zweibrücken County n/a n/a 1286: Partitioned from Zweibrücken1385: Zweibrücken sold to the Palatinate1394: Extinct; remaining territory to Zweibrücken-Bitsch Zwiefalten Abbacy Swab SP 1089: Abbey established; to Achalm1098: To Urach1250: To Fürstenberg1265: To Württemberg1750: Imperial immediacy; joined the Swabian Prelates1802: To Württemberg; secularised and suppressed
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