Lucian the Divine stopped the Demon of Lies and was about to kill the baby, in order to stop the chaos demon, but couldn't bring himself to strike the helpless babe. He took Damian under his wing and raised him as his son.
The Black Ring sent the dark sorcerer Ygerna to teach Damian about the powers hidden away in his soul and she started to tutor him to awake his dormant demon and the two fell in love. Alas, Lucian found out about Ygerna and was about to execute her. Damian walked in as the blade fell and cast a Soul forging spell on Ygerna, just as the blade hit, reversing the nature of the spell.
Damian in a fury took control of the Black Ring and attacked Rivellon and meet Lucian in the Temple to the Divine and attacked. Lucian however had prepared a trap for his son, a rift gate. Damian stormed the temple, springing the trap, with Lucian stepping into the rift as well to ensure only when he or one of his Paladins willed it, then it would open again. Lucian and Damian battled across the Dimension of Nemesis only to see Lucian as the victor, however once again he could not bring himself to hurt Damian and therefore left.
Damian spend the next many years in Nemesis trying to find a way back to Rivellon, with the help of the native species there, who like Lucian, had adopted him and were teaching him their ways. Damian with his lust for power, however used an imp to steal a stone protecting Nemesis from Demons and therefore brought forth the race's doom.
Damian met a paladin who had been trapped in the ethereal dimension and tricked them into believing that he is a Death Knight. Using the helmet of a Death Knight to hide his true identity, he tricked the Demon Overlord Samuel to soul forge him to the paladin, forcing them to help him.
They fought their way though Nemesis and in the end the paladin freed Damian from the Nemesis. In return, Damian spared the paladins life and broke the soul forge between the pair. Damian returned to Rivellon and took control of the Black Ring once again, thus starting a new war against Rivellon.
In the war a Dragon Knight stabbed Lucian the Divine and rumors of his death spread across the Earthrealm. This however, was an illusion created by Damian and instead of killing his father he had him trapped in a crystal prison to observe while Damian's Black ring was ready once again to scorch everything Lucian held dear and leave only ash. Why he decided to leave his Father alive is yet unknown.
Divinity II: Ego DraconisEdit
Damian once again begun his invasion of Rivellon, where he is first seen at the fore of his armada. The next time he is seen is immediately after the Slayer becomes a Dragon Knight, where he threatens the Knight against continuing his quest.
Divinity II:Flames of VengeanceEdit
Ygerna reveals that Damian was not in his palace but elsewhere, working to unlock his full demonic powers.