Curse of the Vampires
Siblings discover that their father has their vampire mother chained up in the cellar. The mother bites her son and soon everyone in the community is either dead or a vampire.
Starring Amalia Fuentes, Romeo Vasquez, Eddie Garcia, Johnny Monteiro, Rosario del Pilar, Mary Walter, Francisco Cruz, Paquito Salcedo, Quiel Mendoza, Andres Benitez
Watch "Curse of the Vampires" on Plex Free released in 1966. It's a drama and horror movie, and has a rating of 4 out of 10 from Imdb which is fairly low for this kind of movie, and is currently available to watch for free.