Both Alexander Corvinus and Viktor were 5th century Hungarian warlords before they became immortal.

Alexander became the first immortal by surviving a plague, discovering that he possessed a rare genetic mutation, allowing him to be immune to any disease.

Viktor was turned into a vampire by Alexander's son, Marcus after Marcus was bitten by a bat. Marcus sought out Viktor and offered him immortality in exchange for his military expertise along with his loyal army.

How did Marcus even know of Viktor and his army? It seems more than a coincidence that both Alexander and Viktor were 5th century Hungarian warlords. Is there any evidence that Alexander and Viktor knew each other before either of them became immortal?

In the Underworld series both Alexander Corvinus and Viktor were 5th century Hungarian warlords before they became immortal.

Alexander became the first immortal by surviving a plague, discovering that he possessed a rare genetic mutation, allowing him to be immune to any disease.

Viktor was turned into a vampire by Alexander's son, Marcus after Marcus was bitten by a bat. Marcus sought out Viktor and offered him immortality in exchange for his military expertise along with his loyal army.

How did Marcus even know of Viktor and his army? It seems more than a coincidence that both Alexander and Viktor were 5th century Hungarian warlords. Is there any evidence that Alexander and Viktor knew each other before either of them became immortal?