The Aachen Cathedral Treasury ("Aachener Domschatz") is one of the largest and most important treasuries of medieval Christian artworks in Europe. The treasury has over a hundred works that are exhibited in a museum adjacent to the Aachen Cathedral – the monumental church of Charlemagne, which together with the treasury was added to the first UNESCO World Cultural Heritage list in 1978.
Charlemagne donates "Our Lady of Aachen"
Aachen or Cologne, ca 1300

In his angled arms Charlemagne held presumably a model of "Our Lady". The counterpart of this group of figures is not extant.