This series takes place almost 300 years after Trevor Belmont & Sypha Belnades. Ricther Belmont is Trevor Belmont's 6th Great-Grandson.
When Juste Belmont speaks to Richter about his past, he mentions that he was once an extremely powerful magic user and that he hardly needed or used the whip. This can be slightly confirmed due to that in Castlevania: Harmony of Dissonance (2002) (Game Boy Advance game); although your main attack is the use of the whip, there are almost more than 25 combinations of magical attacks that you can use in the game at your disposal.
Adi Shankar sued Project 51 Productions and Kevin Kolde for attempting to exclude him from this series.
Edward Bluemel (voice of Richter Belmont) and Elarica Johnson (voice of Drolta Tzuentes), both appeared in A Discovery of Witches (2018). That series also features vampires and magic.
Even though he is French, Mizrak was born in Turkey / Turkiye as explained by Samuel Deats. His name "Mizrak" means "Spear / Lance" in Turkish.