oblivion who stole the painting

The painting stolen in the "Canvas the Castle" quest in The Elder Scrolls IV: Oblivion was taken by Chanel. She stole the portrait of the late Count Valga out of jealousy and love for the Count, resenting that the Countess kept the painting to herself. Evidence against Chanel includes paint footprints in the dining hall, painting supplies found in her room, and the fact that she was the original artist of the portrait. After gathering evidence and raising her disposition, Chanel admits to the theft and reveals where the painting is hidden