Erissare Arenim is an altmer commoner living with her husband Soris Arenim in the Imperial City. She lives her entire life indoors as dose Soris.
Erissare’s husband has an obsession with mage’s staves and she proves helpful during the Bravil recommendation quest commenting:
"That thing? Soris keeps it locked in a chest, down in the basement. I don't see why he's so careful with it. It's not like anyone determined enough couldn't get their hands on it; the key is in his desk, after all."