Uther

King Uther, often referred to as The Pendragon, is the High King of Britain. He is the youngest son of the late King Constantine III and the younger brother of Aurelius Ambrosius and King Constans II, who was ousted from the throne after being murdered at the instigation of his advisor, Vortigern. Uther, a great warrior and charismatic man, plans to reclaim the throne through conquest in a civil war against Vortigern and his Saxon allies.

Background
Uther is the third and youngest son of Constantine III and his unnamed wife. He has two older brothers, Constans II and Aurelius. His father died in his youth, and Constans inherited his title and throne. Constans became a puppet to his advisor, Vortigern, who eventually disposed of the king by tricking some Picts into murdering him, and replaced Constans as the High King of Britain. With the death of their brother and the throne usurped, Uther and Aurelius fled into Brittany with the loyal remaining forces.