Palatine Chapel, Aachen

The Palatine Chapel in Aachen is an early medieval chapel and remaining component of Charlemagne's Palace of Aachen in what is now Germany. Although the palace itself no longer exists, the chapel was preserved and now forms the central part of Aachen Cathedral. It is the city's major landmark and a central monument of the Carolingian Renaissance. The chapel held the remains of Charlemagne. Later it was appropriated by the Ottonians and their coronations were held there from 936 to 1531.

As part of Aachen Cathedral, the chapel is designated as a UNESCO World Heritage Site.

Charlemagne began the construction of the Palatine Chapel around 792, along with the building of the rest of the palace structures. It was consecrated in 805 by Pope Leo III in honor of the Virgin Mary. The building is a centrally planned, domed chapel. The east end had a square apse, and was originally flanked by two basilican structures, now lost but known through archaeology. The chapel was entered through a monumental atrium, to the west. The plan and decoration of the building combines elements of Classical, Byzantine and Pre-Romanesque, and opulent materials as the expression of a new royal house, ruled by Charlemagne.

The architect responsible, Odo of Metz, is named in a tenth-century inscription around the dome: Insignem hanc dignitatis aulam Karolus caesar magnus instituit; egregius Odo magister explevit, Metensi fotus in urbe quiescit. Nothing more is known of him. The building he designed has a simple exterior and a complex interior, with a double shell octagonal dome resting on heavy piers, a two-story elevation, and elaborate revetment and decoration.

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