The Minster of St. Mary and St. Mark is the Romanesque former monastery church of Reichenau Monastery and today's Catholic parish church[1] in the Mittelzell district on the island of Reichenau in Lake Constance (Untersee). This minster was the abbey church of the important Benedictine abbey (Latin: Monasterium Augiensis) and is the largest of the three Romanesque churches on the island.
On the occasion of the monastery's 1,300th anniversary, Pope Francis elevated the minster to a minor basilica in April 2024.[2] Since 2000, the monastery island of Reichenau, including the minster, has been a UNESCO World Heritage Site; in 2003, ten major works of the Reichenau manuscripts were added to the UNESCO Memory of the World Register as "culturally and historically unique documents that exemplify the collective memory of humanity."[3][4] To mark the 1,300th anniversary, the Great State Exhibition of Baden-Württemberg 2024, entitled World Heritage of the Middle Ages, showed manuscripts and other evidence from the island in the Archaeological State Museum of Baden-Württemberg in Konstanz on Lake Constance and on Reichenau itself from April to October 2024.[5][6] For the Reichenau Minster, a citizens' project group has created the "Reichenau Book of Solidarity 2024" as a continuation of the Reichenau Book of Brotherhood of 824.