Principality of Leyen

Infobox Former Country
native_name = "Fürstentum Leyen"
conventional_long_name = Principality of Leyen
common_name = Leyen|
continent = Europe
region = Central Europe
country = Germany
era = Napoleonic Wars
status = Client state
status_text = Puppet state of the First French Empire
Member of the Confederation of the Rhine
empire = First French Empire
government_type = Principality|
year_start = 1806
year_end = 1814|
event_start = County of Adendorf
raised to a principality
date_start =
1806
event_end = Mediatised to Austria
by the Congress of Vienna
date_end =
1814
event_post = Granted to Grd Dchy Baden
date_post = 1819|
p1 = Wachtberg
image_p1 =
s1 = Austrian Empire
flag_s1 = Flag of the Habsburg Monarchy.svg|



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image_map_caption = The Principality of Leyen, shown within the Grand Duchy of Baden|
capital = Hohengeroldseck|
leader1 = Philip Francis
title_leader = Prince|
footnotes = The Principality of Leyen was a Napoleonic German state which existed 1806–1814 in Hohengeroldseck, in the west of modern Baden-Württemberg. The family of Leyen had acquired many districts in western Germany, and eventually these were inherited by the Leyen line of Counts at Adendorf. In 1797, France defeated the Holy Roman Empire and all lands west of the Rhine were lost. Following the defeat of Austria in 1806, Count Philip Francis of Adendorf was raised to a Prince, and his lands were renamed to the 'Principality of Leyen'. Prince Philip Francis, like many other members of the Confederation of the Rhine became largely a French puppet, so following Napoleon's defeat at the Battle of Leipzig in 1813, the Congress of Vienna opted to mediatise his realm.

Prince of Leyen (1806–1814)

* Philip Francis (1806–1814) "(Count of Adendorf)"