Count Rudolf of Altenbourg founded an Abbey on his estate at Ottmarsheim which was destined for the Benedictines and consecrated in 1049 by the Alsatian Pope Leo IX. much has been written about this edifice and many studies were dedicated to it during the Renaissance period because of the octagonal shape, like a pagan temple, inspired directly from the Palatine Chapel of Aix-la-Chapelle. Many authors were nonplussed by the Abbey and some even thought that it was a temple to the god Mars.
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