A minor member of Harkon's court, she serves Vingalmo as his personal lackey and tool to further his goals and ambitions. She dies no matter what side the Dragonborn takes; either from trying to murder them in Redwater Den, or being slain in the Dawnguard assault on Castle Volkihar.
An unexpected assaultEdit
Stalf: "Yeah, too bad. Lord Harkon's new favorite, dead so soon after joining the family."
Salonia: "We're just lucky I was here to return the Chalice to Vingalmo, so he could make sure Harkon gets it back."
Stalf: "Wait, what? That's not what we agreed. We take it back together."
Salonia: "Idiot. You didn't really think I'd let you walk out of here either, did you? Vingalmo wants you both dead."