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911 CEReputable source · 2 sourcesDebated

Rollo receives Normandy from Charles the Simple

A Viking chieftain converts, takes the name Robert, and founds a duchy that outlasts the Vikings

On the timeline · around 911 CE · Greenland and VinlandConquest and SettlementGreenland and VinlandRollo receives Normandy from Charles the Simple900 CE905 CE910 CE915 CE920 CE925 CE930 CE935 CE940 CE

Quick facts

Region granted
Lower Seine valley, later Normandy
Date
911 CE
Granting king
Charles the Simple
Baptismal name
Robert

What happened

In 911 the Frankish king Charles the Simple granted the Viking chieftain Rollo control of territory around the lower Seine, on the condition Rollo convert to Christianity and defend the region rather than raid it further. Rollo accepted baptism and took the Christian name Robert, and this land became the core of the duchy of Normandy, named for the 'Northmen' who now ruled it. Unlike earlier Viking leaders who took Frankish payoffs and kept raiding anyway, Rollo held to the arrangement and began establishing law and order in his new territory, ruling until around 927. Little is verifiable about Rollo's origins or life before 911: even his birthplace and lineage are disputed, and much of his later reputation was built by Christian writers who turned him into a moral exemplar.

Why it matters

Normandy became a permanent, powerful Frankish duchy rather than another temporary Viking camp, and Rollo's direct descendants include William the Conqueror, who invaded England in 1066. The 911 arrangement is the clearest example in this period of a Viking leader trading raiding for a durable land grant and political integration.

How we know

Frankish charters attest to the 911 grant, but the detailed narrative of Rollo's life comes largely from Dudo of Saint-Quentin, writing about a century later, whose account historians treat as embellished hagiography rather than straightforward history.

Sources

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Rollo receives Normandy from Charles the Simple · The Vikings · SourcedStory