The Province of Hohenzollern or the Hohenzollern Lands was a de facto province of the Kingdom of Prussia. It was created in 1850 by joining the principalities of Hohenzollern-Sigmaringen and Hohenzollern-Hechingen after both formerly independently ruling Catholic princely lines of the House of Hohenzollern had handed over their sovereignty to Prussia, ruled by the Protestant Hohenzollern branch. Both used the same dynastic coat of arms as the one used by the Prussian royal family.