Camilla Valerius is the sister of Lucan Valerius, the owner of Riverwood Traders in Riverwood. If her brother dies, Camilla will take over the store. The store was robbed by Arvel the Swift, who took an antique Golden Claw and retreated to Bleak Falls Barrow. Camilla will reluctantly task you with retrieving it. Camilla is also involved in a local love triangle with Faendal and Sven.
She is also one of the NPCs who can be married when the player has the amulet of Mara.If you have murdered her brother, however, you are unable to marry her. Having her as a wife will give you full access to the Riverwood Trader.