|Period||1818 - 1821|
|Belligerents||civil war in the Toomrur Hegemony|
The Dark Prince Civil War was started when the worshipers of Grazz't led a crusade against the Church of Vaprak.
The rebel leaders of this conflict were Bluefang and the shadow dragon Torfillifus. Followers of Graz'zt as long as it worked in their interests, they led a very successful uprising. In the early stages of the uprising, they relied heavily on mercenaries out of the Tormoran Federation and Rethmorg; both traditional enemies of the people of the Toomrur Hegemony.
The Dark Prince Civil War ended on 11 Brighstar 1821. Mordkon's high priestess, a half-Toomrur/Hobgoblin out of Gorkith, issued a bull forbidding the worship of Vaprak. New churches were built praising the demon lord Graz'zt.