"Ethelred the Unready was forced to go into exile in late 1013, following Danish attacks, but was invited back following Sweyn Forkbeard's death". Britannia HistoryArchivado el 28 de enero de 2007 en Wayback Machine.
"Ethelred the Unready was forced to go into exile in late 1013, following Danish attacks, but was invited back following Sweyn Forkbeard's death". Britannia HistoryArchivado el 28 de enero de 2007 en Wayback Machine.