Corvulus of Friuli
Corvulus was the Duke of Friuli for a brief spell in the early eighth century AD. He replaced Ferdulf, but he offended King Aripert II and was arrested and his eyes gouged out. He lived in obscurity and shame as a blind exile thereafter, according to Paul the Deacon. He was ultimately replaced by Pemmo.
"Corvulus" literally means "little raven" in Latin, so this may have been a hypocoristic or Latinization for the Duke's real birth name.