Black Sunday (1960)

Over 200 years after being executed for being a witch and a vampire, Princess Asa Vajda is resurrected when two travelers, Prof. Thomas Kruvajan and Dr. Andre Gorobec, accidentally disturb her abandoned tomb. At the time of her execution, the princess swore vengeance against her accuser, her brother, and all of his descendants. She quickly resurrects her lover and turns Kruvajan into her vampire servant. When she learns that the present day Princess Katia is identical to her, she sets out to get control of the young woman.

IMDb: https://www.imdb.com/title/tt0054067