Folklore etc. does not matter. What are vampires in Faerun. That is the setting.
Vampires enjoyed fine things and engaging in decadent behavior, sharing such habits with liches. A vampire was always a creature of evil. If it was not evil in life, it became so in undeath.
A vampire spawn was innately subservient to the vampire that created it. They could only achieve free-will if their creator died[5] or if their creator voluntarily granted them freedom, but once free of their bondage a spawn could not be enslaved again.[6]
Spawn typically believed they were superior to other living or undead creatures, regardless of how powerful a creature actually was.[7]
When it came to a life of adventuring, vampire spawn would seek vengeance on their creators, or penance for their new damnation. If these monsters could overcome their ravenous emotions, they might seek out knowledge, glory, or power. Pride was the true driver of the vampire spawn, since they believed themselves better than others.
