The Knights of Order are a type of Daedra who serve Jyggalag, the Daedric prince of order. They are generally found in the Shivering Isles only during the Greymarch, the time when Jyggalag attacks Sheogorath's realm in Oblivion. Indeed, the have never been seen any other time. They were crystal armour, similar to the obelisks that are found throughout the Shivering Isles, and are summoned by the Priests of Order at said obelisks. Knights of Order are a humanoid type of daedra and are armed with crystal swords. According to the Daedric prince of madness, Sheogorath, they don't have a single original thought in their heads, making them the perfect tools of Jyggalag.