Sebastian Thor
From Lexicanum
Sebastian Thor was the shadowy and ill defined figure who led the people of the Imperium in the overthrow of the insane High Lord tyrant Goge Vandire.
It is conjectured that Thor was a simple preacher born on the world of Dimmamar and little else is known of him before his rise to power. During the Reign of Blood as Goge Vandire was at the head of the Ecclesiarchy, Thor began to proselytise his people and lead them into opposition against Vandire. Vandire dispatched a fleet to crush the rebellion and kill Thor, but the fleet was wiped out by a warp storm that came to be known as the Storm of the Emperor's Wrath, suggesting that the Emperor himself was aiding Thor. After this, the Imperium erupted into rebellion against Vandire.
Thor soon began a crusade to Terra, attracting several Space Marine chapters and the Adeptus Mechanicus to support him. After Vandire's defeat, Thor became the Ecclesiarch and reformed the Imperial Cult and the Ecclesiarchy to be more in line with what the Emperor had wanted for the Imperium.
