Cities of Britain (civitates Britanniae) (§66a) VII. Genealogies (regum genealogiae cum computo) (§c. Life of Patrick (vita Patricii) (§50-55) IV. History of the Britons (historia Brittonum) (§7-49) III. The Six Ages of the World (de sex aetatibus mundi) (§1-6) II. The greatest classicist of the 19th century, Theodor Mommsen, divided the work into seven parts: Preface (Prefatio Nennii Britonum) I. Mary on his shoulders during a battle has been interpreted by later commentators as a mistake for Arthur bearing the image of Mary on his shield, the error being caused by the similarity between the words in Welsh. The reference in the Historia Brittonum of Arthur carrying the image of St. It names the twelve battles that Arthur fought, but unlike the Annales Cambriae, none are assigned actual dates. The work was the first source to portray King Arthur, who is described as a dux bellorum ('military leader') or miles ('warrior, soldier') and not as a king. The work was the 'single most important source used by Geoffrey of Monmouth in creating his Historia Regum Britanniae' and via the enormous popularity of the latter work, this version of the earlier history of Britain, including the Trojan origin tradition, would be incorporated into subsequent chronicles for the long-running history of the land, for example the Middle English Brut of England, also known as The Chronicles of England. The Historia Brittonum describes the supposed settlement of Britain by Trojan expatriates and states that Britain took its name after Brutus, a descendant of Aeneas.

Nennius history of the britons