Source | Historia Brittonum

Nennius’s Historia Brittonum (c. 830) preserves the earliest account of Arthur’s Twelve Battles, portraying him as dux bellorum and linking him for the first time to the victory at Mount Badon.

Arthur’s battles, from the early traditions of Badon to the imperial wars of Geoffrey of Monmouth, trace the rise and fall of Britain’s legendary war leader.

Arthur’s Insignia, said to bear the image of St. Mary or the cross of Christ, symbolized divine protection in battle, though early sources likely intended the emblem to appear on his shield rather than on his shoulders.

Archaeological finds, medieval chronicles, and legendary accounts all shed light on how weapons and armor shaped both real warfare and the stories of Arthurian knights.