Mediatized States of the Holy Roman Empire

Arenburg 1576 - All male-line descendants made Princes of the Empire.
Auersperg 1630 - Created a Count of the Empire.  1653 - Prince.  1791 - All male-line descendants made Princes.
Bentheim und Steinfurt 1817 - Created a Prince of the Empire.
Bentheim-Tecklenburg 1729 - Ceded the County of Tecklenburg to Prussia.  1817 - Created a Prussian Prince.
Bentinck Became British Peers.
Castell-Castell 1901 - Created a Bavarian Prince.
Castell-Rüdenhausen 1901 - Created a Bavarian Prince.
Colloredo-Mannsfeld 1763 - Created a Prince of the Empire (Colloredo).  1798 - Added Mannsfeld to the name, after inheriting that county.
Croy
Dietrichstein Extinct.
Erbach-Erbach 1532 - Created a Count of the Empire (Erbach)
Erbach-Fürstenau 1532 - Created a Count of the Empire (Erbach)
Erbach-Schönberg 1532 - Created a Count of the Empire (Erbach)
Esterhazy  1687- Created a Prince of the Empire.  1783 - This honor was extended to all direct male descendants.
Fugger von Babenhausen 1803 - Head of the house created a Prince of the Empire
Fugger von Glött 1914 - Head of the house created a Bavarian Prince with the qualification of Serene Highness.
Fürstenberg 1534 - Head of the house created a Count of the Empire. 1716 - Prince.
Giech Extinct in 1914.
Harrach 1752 - Created a Count of the Empire.
Hohenlohe-Bartenstein 1744 - Created a Prince of the Empire
Hohenlohe-Jagstberg ???? - Created a Prince of the Empire
Hohenlohe-Langenburg 1764 - Created a Prince of the Empire.
Hohenlohe-Oehringen 1764 - Created a Prince of the Empire.
Hohenlohe-Schillingsfürst ???? - Created a Prince of the Empire
Hohenlohe-Schillingsfürst
(Ratibor & Corvey)
1840 - Created a Prussian Duke
Hohenlohe-Waldenburg- Schillingsfürst 1744 - Created a Prince of the Empire
Isenburg 1744- Created a Prince of the Empire
Kaunitz-Rietberg Extinct
Khevenhuller-Metsch 1725 - Created a Count of the Empire. 1763 - Prince.
Konigsegg-Aulendorf 1629 - Created a Count of the Empire
Keufstein 1637 - Created a Count of the Empire
Leiningen 1779 - Created a Prince of the Empire
Lobkowicz 1624 - Created a Prince of the Empire
Lowenstein-Wertheim- Freudenberg 1812 - Created a Bavarian Prince
Lowenstein-Wertheim- Rosenberg 1711 - Created a Prince of the Empire.  1712 - All direct male descendants granted title of Prince.
Looz und Corswarem 1734 - Created a Duke
Metternich-Winneburg 1679 - Created a Count of the Empire.  1803 - Prince
Neipperg 1726 - Created a Count of the Empire
Oettingen-Spielberg 1734 - Created a Prince of the Empire.  1765 - All direct male descendants granted title of Prince.
Oettingen-Wallerstein 1774 - Created a Prince of the Empire.
Orsini and Rosenberg 1681 - Created a Count of the Empire.  1790 - Prince.
Oretnburg 1573 - Created a Count of the Empire.  1805 - Absorbed by Bavaria
Pappenheim 1740 - Created a Count of the Empire
Platen Hallermund 1689 - Created a Count of the Empire.  1706 - Made Counts of Hallermund by Hannover.
Plettenberg-Wittem zu Meitingen Extinct
Puckler und Limpurg 1963 - Line became extinct.
Quadt 1502 - Created a Count of the Empire.  1901 - Created a Bavarian Prince.
Rechteren-Limpurg 1711 - Created a Count of the Empire.
Salm-Horstmar 1802 - Recieved Horstmar.  1816 - Created a Prussian Prince.
Salm-Reifferscheidt- Krautheim und Dyck 1804 - Created a Prince of the Empire.  1958 - Line became extinct.
Salm-Reifferscheidt-Raitz 1790 - Created a Prince of the Empire.
Salm-Salm 1739 - Created a Prince of the Empire
Sayn-Wittgenstein- Berleburg 1792 - Created a Prince of the Empire
Sayn-Wittgenstein- Hohenstein 1801 - Created a Prince of the Empire
Sayn-Wittgenstein-Sayn 1834 - Created a Prussian Prince.
Schaesberg 1706 - Created a Count of the Empire.
Schlitz genannt von Gortz 1726 - Created a Count of the Empire.
Schönborn 1701 - Created a Count of the Empire.
Schönborn-Bucheim 1701 - Created a Count of the Empire.
Schönborn-Weisentheid 1701 - Created a Count of the Empire.
Schönburg-Glauchau 1700 - All male-line descendants created Count of the Empire.
Schönburg-Hartenstein 1700 - All male-line descendants created Count of the Empire. 1790 - Created a Prince of the Empire
Schönburg-Waldenburg 1700 - All male-line descendants created Count of the Empire. 1790 - Created a Prince of the Empire
Schwarzenberg (Elder) 1599 - Created a Count of the Empire.  1670 - Prince.
Schwarzenberg (Younger) 1599 - Created a Count of the Empire.  1670 - Prince.
Solms-Baruth 1888 - Created a Prussian Prince.
Solms-Braunfels 1742 - Created a Prince of the Empire.
Solms-Hohensolms-Lich 1792 - Created a Prince of the Empire.
Solms-Laubach
Solms-Rödelheim und Assenheim
Solms-Sonnenwalde
Solms-Wildenfels
Stadion Extinct
Starhemberg 1643 - Created a Count of the Empire.  1765 - Prince.
Sternberg Extinct
Stolberg-Gedarn 1742 - Created a Prince of the Empire.  Extinct.
Stolberg-Rossla
Stolberg-Stolberg 1893 - Created a Prussian Prince.
Stolberg-Wernigerode 1890 - Created a Prussian Prince.
Thurn und Taxis 1595 - Head of the house made hereditary Grand Postmaster General of the Empire.  1695 - Created a Prince of the Empire.
Toerring 1607 - Head of the house made hereditary Grand Huntsman of the Duchy of Bavaria.  1618 - Created hereditary Chamberlain of the Duchy of Salzburg. 1630 - Created a Count of the Empire.
Trauttmansdorf 1623 - Created a Count of the Empire.  1778 - Prince.
Walsbott von Bassenheim 1720 - Created a Count of the Empire.
Waldburg-Wolfegg 1628 - Created a Count of the Empire.  1803 - Prince.
Waldburg-Ziel 1628 - Created a Count of the Empire.  1803 - Prince.
Wallmoden-Gimborn Extinct
Wied 1784 - Created a Prince of the Empire.
Windisch-Grätz (Elder) 1557 - Created a Count of the Empire. 1804 - Prince.
Windisch-Grätz (Younger) 1557 - Created a Count of the Empire. 1804 - Prince of the Empire.  1822 - Prince of Austria.
Wurmbad-Stuppach 1607 - Created a Prince of the Empire.  Extinct
Wurmbad-Stuppach 1701 - Created a Count of the Empire.
Ysenburg und Büdingen 1840 - Created a Prince by the Grand Duke of Hessen und bei Rhine

Mediatized - Sovereign states that have been absorbed and lose their sovereignty, but leaving the ex-rulers their status of sovereigns.

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