Yvan

Yvan was once a High Vampire. Although unlike most of his kind he used magic to cover up his appearance and look like a man. He was once a member of Mordred's Court but when he rebelled to take the throne he was badly beaten and barely escaped with his head. After his defeat Yvan started a coven of vampires, his own court, hidden in the Silver Mountain.
Yvan wanted to build his coven up enough to take on Mordred's court but he never got the chance. Mordred sent his daughter to kill Yvan. If it was just her he had to fight he would have won, but she was backed up by Essus The Demon Snake, and together the two "killed" Yvan. Or killed him as much as a High Vampire can be killed