Bernkastel-Kues is a town on the Middle Mosel in the Bernkastel-Wittlich district in Rhineland-Palatinate, Germany. It is well-known for its wine…Bernkastel-Kues is a town on the Middle Mosel in the Bernkastel-Wittlich district in Rhineland-Palatinate, Germany. It is well-known for its winegrowing. The town is a state-recognized health resort, seat of the Verbandsgemeinde of Bernkastel-Kues and birthplace of one of the most famous German polymaths, the medieval churchman and philosopher Nikolaus von Kues.