Arthurian chronicles present Uther as the brother or successor of Ambrosius Aurelianus and as a ruler who fought Saxon enemies. With Merlin’s assistance, he assumes the appearance of Gorlois, Duke of Cornwall, enters Tintagel and fathers Arthur with Igraine.
Merlin’s complicity links Arthur’s conception to questions of power, secrecy and responsibility. Uther connects the legendary resistance of post-Roman Britain to Arthur’s birth and succession. Uther Pendragon was born in Britain (legendary).
In Jack Whyte’s Excalibur, after Uther Pendragon is killed, Merlyn Britannicus becomes guardian of his infant son Arthur, heir to several British and Hibernian bloodlines and to the ambitions centred on Camulod. Enemies who fear what the child may represent force Merlyn to move beyond the colony and seek allies able to protect Arthur’s inheritance. In David Gemmel’s Last Sword of Power, Uther Pendragon's soul is imprisoned, the Sword of Power is lost and barbarian armies advance beneath the influence of an undead god. Uther Pendragon is treated fictionally in Jack Whyte’s Merlyn, Jack Whyte’s Pendragon, Mary Stewart’s The Crystal Cave, Jack Whyte’s The Eagles’ Brood, Book 3, and Jack Whyte’s The Saxon Shore.