Original: The House of Hohenzollern-Sigmaringen is the senior Swabian branch of the Hohenzollern dynasty , less known than the junior Franconian branch which became Burgraves of Nuremberg and later ruled Brandenburg-Prussia and the German Empire .
Simplified: The state which the cadet branch ruled was the County of Hohenzollern-Sigmaringen ( ) , which later became a principality ( Fürstentum Hohenzollern-Sigmaringen ) .