Meanwhile, in Brittany…

Ambrosius and Uther, sons of High King Constantine, gathered armies, for this was a time when one could gather armies as easily as one could gather flowers. Ambrosius and Uther crossed the South Sea and returned once more to their homeland to wreck havoc and revenge upon the vile usurper, Vortigern.

“Well, fuck me,” said Vortigern. (Source: British Library Catalogue of Illuminated Manuscripts)

TL;DR

Constantine’s kids showed the fuck up and went to war with Vortigern. To no one’s surprise, they won. (They may have had some inside help.)

With Vortigern dead, Ambrosius was named High King. Peace returned to the Britons—the same sort of peace that Constantine brought, what with the Britons chilling and the other kingdoms too busy with their own wars.

During this time, Uther and Merlin roamed the countryside to enforce Ambrosius’s rule and give general counsel to the Dukes and Chiefs and other Lords that served under Ambrosius.

One particularly cold night, Uther found himself in the middle of nowhere, camping with his men. He happened to look up, and there he saw a strange sight: a red comet, blazing across the sky.

“Merlin!” he cried as he reached for his sword.

“Yo,” Merlin said.

Uther pointed to the comet. “What the fuck is that?”

Merlin did not look, for he already knew what it meant. “Your brother, Ambrosius, is dead. You, Uther, are now High King of all Briton.”

Broken hearted, Uther and his men returned to Ambrosius’s castle, Camelot. He was greeted with a weary cheer, for Merlin was correct—Ambrosius died the night of the comet, killed by a sharp blow from a coconut.

Uther was named High King. He took on the surname Pendragon, which means “Lord of the Dragons and OH SHIT, YOU GUYS, FUCKING FIREY COMETS.”