(d.1014), king of Denmark circa 985–1014; known as Sweyn Forkbeard. From 1003 he launched a series of attacks on England, finally driving Ethelred the Unready to flee to Normandy at the end of 1013. Sweyn then became king of England but died five weeks later.
Sweyn I in other Oxford dictionaries
Definition of Sweyn I in the US English dictionary
