There was an old black and white horror movie that played on Nightmare Theater with Sammy Terry back in the 1970s I am trying to rewatch. The only vivid scene I can think of is where a father goes to visit the mausoleum of his daughter (I think her name sounded like Ilsa, or Elsa), who may have been killed by a vampire as I recall. Her casket had a window on the front of it and you could see her turn into a skeleton inside. The father shouts her name into the sky.
“The Long Hair of Death” (1964)?
It’s not a perfect match, but the entire movie is on YouTube and there is a similar scene 22 minutes in.