King Arthur legend of the sword alternate version. Elsa lives

King Arthur x Wife of Vortigen Elsa
What if instead of Vortigen sacrificing his wife, he sacrifices one of his trusted commanders and best friend named Pellinore who have been at his side for many years to the sirens to gain power to usurp his brother's kingdom.
Vortigen hears and sees a vision that his wife will marry his nephew after his death and union between them will create children and their descendants who will bring a greater dynasty across Britannia.
Charlie Hunnam x Katie McGrath Romance movie version
The clash between red and white dragons.