County of Nassau

County of Nassau
Princely County/Principality of Nassau
Counties/(later) Principalities of Nassau
(Gefürsteter) Grafschaft Nassau (German)
Fürstentümer Nassau (German)
1125/1159–1806
Coat of arms
County of Nassau in 1547
StatusCounty
CapitalNassau
Common languagesGerman (Rhine Franconian dialects, Moselle Franconian dialects)
Religion
Roman Catholic
Historical eraMiddle Ages
 Foundation of the city which is the namesake
915
 Countly title declared and non-recognized
1125/1159
 Recognition of the title
1159
 Splitings inside it because of sucession
1255–1806
 Declaration of the duchy
1806
Preceded by
Succeeded by
Bishopric of Worms
Duchy of Nassau
Today part ofGermany

The County of Nassau was a German state within the Holy Roman Empire from the period of the formal recognition of the countly title in 1159 (though "de facto" sovereignty began in 1125) until the declaration of the Duchy of Nassau in 1806 with the creation of the Confederation of the Rhine . Through sucession, it had many counts ruling parts of it, mostly or completely independent of one another. After many of these counts were promoted to princely status, the County was promoted and thus was known as a Princely County or as the Principality of Nassau.