The Teutonic Knights were called to Koblenz by the archbishop of Trier, Theoderich von Wied, in 1216 and vested with the estates around the Basilica of St. Castor located directly at the confluence of Mosel and Rhine.
The Teutonic Knights were summoned to Koblenz by Archbishop Theoderich von Wied in 1216, and given control of the estates surrounding the Basilica of St. Castor situated at the confluence of the Mosel and Rhine rivers.