deaths
December 17, 942
William I, duke of Normandy
William Longsword
William Longsword was the second ruler of Normandy, from 927 until his assassination in 942.
Duchy of Normandy
The Duchy of Normandy grew out of the 911 Treaty of Saint-Clair-sur-Epte between King Charles III of West Francia and the Viking leader Rollo. The duchy was named for its inhabitants, the Normans.