She is the childhood crush of Sorex Vinius
If the Dragonborn marries Sorex, Vivienne will be a guest at the wedding.
She mentions how her cousin Fura is somewhere out there in Skyrim right now. In The Elder Scrolls V: Dawnguard, there is a vampire named Fura Bloodmouth in Castle Volkihar. It is possible that this Fura is Vivienne's cousin.
If the Dragonborn steals from Angeline's Aromatics and is caught by Vivienne, she may send Hired thugs.
- The Elder Scrolls V: Skyrim (First appearance)