There were three Children of God of Wine.
Harathir, Darthamir, and Murafir.
All three were considered the first of the Bloodkins or in the common lingo, the vampires. Hence, earning them the title of Progenitor.
"I have read enough books to know how dangerous the vampires were and why the Knights annihilated them… That blood, it might just be doom for my man than his chance for survival." Amir didn't know if the blood was real or not, nor did he have any way to confirm it.
But what he did know was the stigma over the vampires and why they don't exist in the world anymore.
Like many other races of the old, they earned the ire of Puritan gods due to their uncontrollable lust for blood and the diseases they spread among the masses.