
Germanus and Vortigern, and documents events associated with the Anglo-Saxon invasion of the 7th century as contributed by a Northumbrian document. It also includes the legendary origins of the Picts, Scots, St. The Historia Brittonum was highly influential, becoming a major contributor to the Arthurian legend, in particular for its inclusion of events relevant to debate about the historicity of King Arthur. He has traditionally been attributed with the authorship of the Historia Brittonum, based on the prologue affixed to that work, This attribution is widely considered a secondary (10th century) tradition. Nennius - or Nemnius or Nemnivus - was a Welsh monk of the 9th century.
