Treaty of Saint-Clair-sur-Epte
Quick Summary
The Treaty of Saint-Clair-sur-Epte, signed in 911, was a pivotal agreement between Charles III of France and the Viking leader Rollo. Rollo, a Scandinavian rover, had been raiding along the Seine River in France. After a siege of Paris and a defeat near Chartres, Charles III negotiated this treaty with Rollo.12
Under the terms of the treaty, Charles ceded territory in Neustria, which became known as Normandy, to Rollo and his men. In return, Rollo agreed to cease his raids, convert to Christianity, and become a vassal to Charles III. This settlement established the foundation for the Normans, who would later have a significant impact on European history. Rollo is considered the founder of the Duchy of Normandy.12
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