How a medieval treasure trove survived wars, revolutions, and the threat of total destruction

Countries & Cities · Published 29 September 2026 Swipe more like this →

In short: Aachen Cathedral Treasury holds Europe's most significant collection of medieval church art. From Charlemagne's burial sarcophagus to imperial coronation regalia, these artifacts have endured centuries of upheaval. Miraculously, this unique assemblage remains intact today, despite being moved across borders, hidden in bunkers, and caught in the crossfire of global conflict.

The Aachen Cathedral Treasury functions as a museum for the Roman Catholic Diocese of Aachen, housing masterworks from the Late Antique, Carolingian, Ottonian, Staufen, and Gothic periods. Its historical importance is rooted in the cathedral's role as the site where thirty monarchs were crowned between 936 and 1531. Because these rulers required anointing at Aachen before their imperial coronation in Rome, the site became a repository for royal gifts and essential ceremonial objects.

The collection's survival is a testament to persistent efforts to protect it during times of crisis. During the French Revolutionary occupation in 1794, parts of the treasure were relocated to Paderborn. Later, during the Second World War, the collection was dispersed for safety. In 1941, the Nazi regime categorized specific items as essential to the Reich, moving them to Albrechtsburg before eventually transferring them to a tunnel in Siegen in 1944. Following the war, American art protection officer Walker Hancock played a pivotal role in securing the return of these treasures to Aachen in May 1945.

Today, the treasury is organized into five thematic sections, including documentation of Charlemagne’s legacy, liturgical objects, and coronation artifacts. The current exhibition space, refurnished in 1995, spans over 600 square meters and houses more than one hundred artworks. While the collection remains a landmark of cultural heritage—recognized by UNESCO in 1978—it continues to be the subject of ownership disputes, particularly regarding items held in Vienna and other European museums following historical transfers.

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