The Daedric Prince of Madness, the master of misrule, Lord of the Shivering Isles and bringer of chaos! Also the creator of music and the patron of artCheese is his favorite foods, and a tenant for followers of Sheogorath is to not disrespect cheese.
Haskill is his most loyal servant and chamberlain.
He rules over the Shivering Isles, and rebuilds it every new era when it's destroyed by Jyggalag, the Daedric Prince of Order who is in direct opposition to Sheogorath.
Erratic, unpredictable, mad. 