Take a bite out of Robert Pattison family tree and you’ll like find a blood-curling connection to the biggest vamp of the them. The Twilight actor is reportedly related to Vlad-the Impaler, the 15th century Transylvanian leader who inspired the main character in Bram Stoker’s Dracula, according to genealogists.

Geneology experts at Ancestry.com found that Pattinson and Vlad III Dracula are connected through their relationship to the British royal family. While Prince William and Prince Harry are Pattinson’s distant cousins, Vlad the Impaler was their distant uncle.

“Tracing Pattinson’s family back to Vlad was difficult research, but the pieces that unraveled created the perfect accompaniment to The Twilight Saga,” says Anastasia Tyler, a genealogist at Ancestry.com. “Without any myth or magic, we find royalty and vampires lurking in Pattinson’s life – making his story just as supernatural as the one he’s playing on screen,” Tyler added.

Pattinson plays love-sick vampire Edward Cullen in the smash hit film franchise. The latest big-screen installment in the popular vampire saga, Eclipse, opens in theaters June 30. The actor, 24, isn’t the only film star whose past bears an eerie resemblance to his screen persona. Last year, Ancestry.com found that actress Emma Watson, who plays teen witch Hermione Granger in the Harry Potter movies, is related to a 16th century woman accused of witchcraft.