Poenari Citadel

Poenari Citadel is the fortress and headquarters of the Vampire King Cornello, having served the same purpose for his lover and predecessor Vladimir.
As well as being notable for its present use, Poenari Citadel was the location of the only known destruction of a Vampire King, as it was here that Rygax struck Vladimir down with a blessed stake as part of his successful rebellion against the vampiric tyrant.