From Warhammer 40k - Lexicanum
Potchek was a Sorcerer and Chaos Lord who in 551.M37 organized a warband of Traitors and Heretics, Mutants, and summoned Daemons and launched an assault on the Imperial world of Persembe, resulting in the Battle for Kurin's Acropolis. On the verge of victory, Potchek's efforts were foiled by the Dark Angels 3rd Company. Coming under direct attack from Master Baradiel, Potchek's body was reduced to a bloody pulp by the Dark Angel's Storm Bolter before he could unleash a spell.
- 1: Codex: Dark Angels (4th Edition), pg. 21