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Vortigern - Wikipedia
Vortigern | Dark Ages ruler, Saxon invader & British leader
Who was Vortigern? - roman-britain.co.uk
Vortigern - World History Encyclopedia
Who was Vortigern? Name, background, sources.
The Shadowy Reign of Vortigern, The King Who Gave Away Britain
Vortigern - King Arthur's Knights
King Vortigern: The British Ruler Who Lost England
Vortigern - The History Files
King Vortigern and the Search for Arthur’s Britain