Nennius ( - 9th Cent.)

Nennius (also known as Nemnius or Nemnivus) was a Welsh monk of the 9th century. He has traditionally been attributed with the authorship of the Historia Brittonum, based on the prologue affixed to that work. The Historia Brittonum was highly influential, becoming a major contributor to the Arthurian legend. It also includes the legendary origins of the Picts, Scots, St. Germanus and Vortigern, and documents events associated with the Anglo-Saxon invasion of the 7th century as contributed by a Northumbrian document.