Rygax's rebellion was a revolt against Vladimir's rule by a number of powerful Spirits of the Shadowfel, led by Rygax. The plan was to overwhelm the shackles providing Vladimir with his most important powers, then send a strike team into Poenari Citadel to assassinate him in his weakened state. Some particularly powerful Spirits were sent to the borders of Vladimir's realm to hold back the other Kings long enough for the freed spirits to be relocated to safety.

While the rebellion achieved its stated goal of eliminating Vladimir, with Rygax himself striking the fatal blow, the implied goal of liberating Vladimir's territory was foiled by the intervention of Vladimir's heretofore unknown Vampiric lover Cornello, who rebound many of the freed Spirits and took Vladimir's place as one of the five Vampire Kings.

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