At some point in the past, war broke out between Caerleon and Camelot. He was defeated by Uther at the Battle of Denaria, but he retreated to the Castle of Fyrien. Victory would have been denied to Camelot, if Uther hadn't known about a secret labyrinth beneath the castle. Fyrien was in fact greedy, and to avoid Camelot's levies he had dug tunnels from the castle to the sea. That way he could smuggle goods into the kingdom without anyone knowing (The Castle of Fyrien).
At some point, Gorlois befriended Queen Annis and possibly King Caerleon.
Following the death of Uther, he began raiding Camelot. During one of these raids, he was eventually led into a trap and captured. Following his uncle's advice, Arthur tried to force him to sign a treaty. He refused, which made Arthur reluctantly order him killed. His body was later returned to his kingdom. This event led to the brief war between Camelot and his land which was led by his wife (His Father's Son).
Little is known about Caerleon's personality. It is unknown how he exactly treated his wife, Annis. Although it is assumed that he loved his wife, and she proved to love him back when she wanted vengeance on Arthur over his death. He appeared to not care much about his kingdom as he was willing to leave it at a circumstance where he wanted more land. Caerleon was also very stubborn as he refused to sign a peace treaty, even when his life was threatened.
AbilitiesWhen Caerleon led mercenaries around Camelot to conquer land. He ran with them, carrying a sword. It is unknown if he was good with it at the time or not but it is assumed that he is since he is the king of Caerleon, which means he must have had the ability to fight with it. Several years before he fought in the Battle of Denaria which implies that he was good in battle as well as with a sword.
- Due to his wife, Annis being confirmed to return in Series 5, it indicates a possibility that he could be referenced in the same episode that she appears in.
|Series 4 Enemies|
|The Darkest Hour: Morgana • Morgause • The Dorocha • The Cailleach • Agravaine • Wilddeoren • Wyvern|
The Wicked Day: King Odin • Morgana • Agravaine • The Gleeman • Geldred
Aithusa: Julius Borden • King Odin
His Father's Son: Morgana • Agravaine • Queen Annis • King Caerleon • Derian
A Servant of Two Masters: Morgana • Agravaine • Fomorroh • Merlin (indirect)
The Secret Sharer: Morgana • Agravaine • Alator • Orn
Lamia: Lamia • Agravaine
Lancelot du Lac: Morgana • Lancelot (Shade) • Agravaine • Dochraid
A Herald of the New Age: Shrine Boy • Elyan (indirect)
The Hunter's Heart: Morgana • Agravaine • Helios
The Sword in the Stone: Morgana • Agravaine • Helios • Aithusa • Nathair
|Kings of Albion|
|Arthur Pendragon † • Uther Pendragon † • Godwyn • Bayard • Helios † • Lot • Cenred † • Caerleon † • Odin • Olaf • Fisher King † • Bruta † • Alined • Rodor