 The transformation into a cathedral made a new expansion necessary.Cardinal Franz Hengsbach, the first bishop, said during his lifetime that he wished to make use of his right to be buried within his cathedral church, but not in the Ottonian crypt with Saint Altfrid.In order to fulfill this wish, a west crypt with an entrance in the old westwek was installed under the atrium between 1981 and 1983 by the cathedral architect Heinz Bohmen and decorated with cast concrete sculpture by Emil Wachter.