Archon Nadzybar was the overlord of the Archenemy forces within the Sabbat Worlds Sector during the Sabbat Worlds Crusade.
History
Nadzybar was a powerful sect-leader whom came to preeminence over a number of powerful 'Magisters', or lieutenant warlords, and commanded a large, unified coalition of tribes and clans, known as the Archenemy, that were subservient to the Ruinous Powers. Though little is known of this vile creature's origins or background, nor is rise to power over the other ruling lords within the sector. From what little intelligence that could be gathered on the Archon, Nadzybar has been in command of the Archenemy forces in the Sabbat Worlds since at least 634, and it is possible his rule and influence predates even that. There is even speculation that Nadzybar may even have been the charismatic Chaos warlord to first rally the Forces of Chaos within the sector into retaking the Sabbat Worlds during the first centuries of M41. If this is true, than it would suggest Nadzybar has an unnaturally extended lifespan.