Burg Eltz is a medieval castle nestled in the hills above the Moselle River between Koblenz and Trier, Germany. It is still owned by a branch of the same family that lived there in the 12th century, 33 generations ago. The Rübenach and Rodendorf families' homes in the castle are open to the public, while the Kempenich branch of the family uses the other third of the castle. The Palace of Bürresheim (Schloss Bürresheim), the Castle of Eltz and the Castle of Lissingen are the only castles on…