The seat of the Hohenzollern family was constructed for King Frederick William IV of Prussia. In 1945 it became home to the former Crown Prince Wilhelm of Germany, the son of the last Hohenzollern monarch, Kaiser Wilhelm II.
Templar Castle – Ponferrada, Spain [Ponferrada is the capital city of El Bierzo in the Province of León, Spain. It lies on Sil River and . Ponferrada is also noted for its Castillo de los Templarios, a Templar castle]