Werewolf vs. Vampire Woman, The (1971)

aka's: Noche De Walpurgis/Die Nacht Der Vampire/Blood Moon

Elvira (Gaby Fuchs) is traveling through the French countryside with her friend Genevieve (Barbara Capell), searching for the lost tomb of a medieval murderess and possible vampire, Countess Wandessa. They find a likely site in the castle of Waldemar Daninsky (Paul Naschy), who invites the women to stay as long as they like. As Waldemar shows Elvira the tomb that supposedly houses the countess, she accidentally causes the vampire (Paty Shepard) to come back to life, hungrier than ever. Daninsky has a hidden secret of his own, but will it be enough to save the two girls from becoming Wandessa's next victims?

This is the English language version of Die Nacht Der Vampire, also available here at Rare Movie Collector.