- The octagonal Palatine Chapel was the private chapel of Charlemagne and holds his remains. The Barbarossa chandelier is a contribution of the Emperor Frederick 1er in the twelfth century.
- The Palatine Chapel was built by architect Eudes de Metz, it is a typical example of Carolingian architecture.
- Completed in 805, it was the place of coronation of German kings from that of Otto I in 936 to 1531.
- The Palatine Chapel is located on the heights of Aachen, North Rhine-Westphalia.