Anyone who would like to take part in one of the numerous guided tours in Ingelheim now has the opportunity to secure a limited commemorative coin related to Charlemagne. When paying for the tour, the participants can ask the respective tour guide to give them a special two-euro coin as change. The Carolingian ruler Charlemagne built the Ingelheim Imperial Palace and is therefore always present on the historical city tours.

The two euro coin “1275. Birthday of Charlemagne" is a special issue of the Bundesbank on the occasion of the birthday of Charlemagne (748 - 814), which will be 1275 in 2023. The collector's item has been in circulation since March 2023. The obverse of the commemorative coin combines the ruler's personal monogram with the octagon of Aachen Cathedral, Charlemagne's former main residence.