King Arthur, book 1: Dragon's Child
M.K. Hume2009

Uther Pendragon, High King of Britain, is dying. As he weakens, Britain is being torn apart by the squabbling of kings. Only one man can bring them together. This is the legend of Artorex, the man destined to be King Arthur. Artorex, tall for his years, is growing up in the household of Lord Ector. Artorex was sent here by the Bishop of Glastonbury when he was but a babe in arms and, although his parentage is unknown, life has been unremarkable. That is, until the arrival of three men who arrange for him to be trained in the skills of the warrior; blade and shield, horse and fire; pain and bravery. By the time the men return, Artorex is both a father and a warrior -- and married to Lady Gallia. The country is in a desperate state -- Londinium is about to fall to the Saxons and Artorex is needed to help fight their advance. But to do so, he must leave his wife and family in the care of others. In an act of appalling treachery, they are slaughtered. But despite his terrible grief, Artorex's destiny is set. He launches into a campaign of battle against the Saxon hordes, earning himself the trust of all men, and proving himself to be the only worthy successor to Uther.But Uther cannot accept Artorex's role and hides his sword and crown. If Artorex is to unite the kings and fulfil his destiny, he needs the weapon destined to be worn by the High King of the Britons. Can he find the embittered Uther's hiding place? The future of Britain is at stake...