In an early draft of the film, Charles Dance's Master Vampire was planned to be revealed as Roman Emperor Caligula. This was dropped with the intention of revealing it in a sequel if the film became part of the Universal "Dark Universe" shared universe.
Charles Dance passed the time in the makeup chair by sleeping through the application, and would be startled at the sight of himself in the mirror upon waking up.
The name "Ingeras" (Dracula's son) means "little angel" in Romanian.
Real life Vlad Tepes was a prince of Wallachia (Tara Romaneasca). He reigned for two months as a puppet of the Turks in 1448, then for six years from 1456 to 1462, then one last time in 1476 when he was killed after two months.
This was the first big budget solo Dracula film produced by Hollywood to be released theatrically since Dracula 2000 (2000) 14 years earlier.