Basilica of St. Castor

The Basilica of St. Castor (German: Basilika St. Kastor or Kastorkirche) is the oldest church in Koblenz in the German state of Rhineland Palatinate. It is located near Deutsches Eck at the confluence of the Rhine and the Moselle. A fountain called Kastorbrunnen ("Castor well") was built in front of the basilica during Napoleon’s invasion of Russia in 1812. Pope John Paul II raised St. Castor to a basilica minor on 30 July 1991. This church is worth seeing for the historical events that have occurred in it, its extensive Romanesque construction and its largely traditional furnishings.

Since 2002, the Basilica of St. Castor has been part of the UNESCO World Heritage cultural landscape of the Upper Middle Rhine Valley. In addition, it is a cultural property protected under the Hague Convention.

The church of St. Castor was built between 817 and 836 by Hetto, the Archbishop of Trier with the support of Emperor Louis the Pious, just outside the city of Confluentes (the city founded by the Romans in the area) and dedicated on 12 November 836. As Koblenz had a Frankish royal court, Louis was in charge of the construction of the church and it was built as a Carolingian proprietary church. However, Louis did not come to Koblenz until after the consecration of the church. This points to the importance of the Archbishop in the building of the church, especially as the church was until the 13th century outside the city of Koblenz.

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