Eltaor

Eltaor (pronunciation El-Tor) is a cleric of Sisk’rosham who became a vampire in 1113 DR through a blood ritual dedicated to Sisk'rosham and Dranukath (the blood drinker, patron of vampires).

Timeline
1053 DR - Elator was born to a paladin of Valdavesk in Kultamrish

1113 DR - Elator became a vampire

1275 DR - Elator made a pact with Omar Zul

25th Marzel 1278 DR - Elator was seemingly killed in the caves bellow white hollow, where he was building an undead army

33rd Marzel 1278 DR - Elator and Walda Deray kidnap Foerth and use his blood to corrupt a holy relic of Kyhulla before escaping