Real vampires were teached vampirism by Nephilim called Zalmoxis(Salmoxis) from underground this being and watcher descendant was responsible for entire vampire panic in Romania this devil students were called Solomonari what's even wilder is that those who left to live among humans were called "master builders" which I belive later was reason for creation of Freemasonry, as you might expect all magic happend through spirits of watchers which as we know from book of Enoch teached humanity the devils way of doing magic which one result is Vampyre abomination for example famous Vlad Impaler was student, for more info check Alexandr Bogdanov this scientist literally become younger by drinking blood.Look at the royal devil lineages famous blood libel ,Elizabeth Bathory, now adrenochrome