Vortigern : diforc'h etre ar stummoù
Endalc’h diverket Danvez ouzhpennet
Linenn 141:
==Liammoù diavaez==
*[http://www.vortigernstudies.org.uk Vortigern Studies,
*[http://yba.llgc.org.uk/en/s-GWRT-HEY-0400.html?query=Vortigern&field=content National Library of Wales Dictionary of Welsh Biography]
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