During my visit there, I had looked at the size of the bricks used and I thought of the statement of professor Arnold Wolff, the second master builder of Cologne cathedral, that, with their departure, the Romans had taken with them the art of brick burning. Only the famous Bishop Bernward of Hildesheim (950/60-1022) had for the first time again ordered the production of bricks or roof tiles. This has now been confirmed by archaeological research. For this reason, I spoke of the reuse of Roman stones.
In 2010, a friendly reader pointed out that my statement about the building material was not correct.The Hessian State Office for the Preservation of Monuments (Landesamt für Denkmalpflege) has found bricks of poor quality, obviously from local production. In the meantime, I had learned of a letter from Einhard to a certain Egmunelus, who was entrusted with the brick production for the basilica.
Thus, I corrected my statement.
Some time ago, I read more specific information in Matthias Untermann’s book on medieval architecture: Egmunelus received an order of 260 stones in two different sizes. In total, however, about 7000 stones were used.
I corrected the article a second time.
Let's finish the topic with my wife's question, "Don’t you have anything more important to do?"
Untermann, Matthias,Handbuch der mittelalterlichen Architektur, Wissenschaftliche Buchgesellschaft Darmstadt, 2009
Translation: Erik Eising