Balthazar Edge

Balthazar Edge was the father of Winchester Edge, and was said to have been a friend of Rosdalf The Wizard.

III: The Sword Of Demons
After Winchester Edge saves Rosdalf The Wizard and Tiberius from The Tree Of Unpredictability, Rosdalf performs a song to Tiberius, explaining Winchester's background.

In the song, Rosdalf explains that Winchester's father was a wizard named Balthazar, who was his friend. The fate of Balthazar Edge remains unknown.