Weak vampire flick from Full Moon Productions did star Angus Scrimm (the tall guy in "Phantasm") and introduced us to Radu (played by Anders Hove), a charismatic, ugly, long-haired vampire who became the basis for several sequels. The movie also has some cool, claymation demons.
Upon returning home to his Romanian castle, Radu kills his vampire king father (Scrimm) and steals a precious "blood stone" which supposedly has blood from saints! I guess vampires are into that stuff.
Some American schoolgirls show up, and you can imagine what happens next. It was filmed on location in Romania. This movie wasn't so hot, but the sequel rocked.