Among the cathedral's admir?­able 12th- to 14th-century stained-glass windows in the nave and northern aisle there are portraits of medieval German emperors.
The cathedral has windows from the 13th century.
mnli hypothesis: The cathedral has windows from the 13th century. premise: Among the cathedral's admir?­able 12th- to 14th-century stained-glass windows in the nave and northern aisle there are portraits of medieval German emperors.