Complex sentence: Burg Eltz is a medieval castle nestled in the hills above the Mosel River between Koblenz and Trier, Germany, which is still owned by a branch of the same family that lived there in the 12th century.
Split into simpler sentences: Burg Eltz is a medieval castle nestled in the hills above the Mosel River between Koblenz and Trier, Germany. It is still owned by a branch of the same family that lived there in the 12th century.