Knight of Order

Knights of Order are Daedra who serve the Daedric Prince Jyggalag in the Shivering Isles. They are continuously spawned by Obelisks in the Shivering Isles by the mortal followers of Jyggalag known as Priests of Order. They are used by Jyggalag Daedric Prince of Order.

History
Originally created as pawns for Jyggalag to use as enforcers of order, the Knights of Order were destroyed completely when Jyggalag was originally cursed to become Sheogorath. During each of the Greymarches, the Knights of Order rise up again to destroy Sheogorath's realm, the Shivering Isles. Following his defeat, and subsequent freeing by the Hero of Kvatch, the Knights of Order were recreated by Jyggalag to act as his emissaries once more, allowing him to resume his sphere of creating Order where there is none.

Physiology
They are humanoid in shape, seemingly slightly taller than most humanoids, wear crystal armor and wield crystalline swords, which they seem to wield with great skill. According to Sheogorath and Haskill, the Knights, much like their Prince, do not have a single original thought in their heads, making them perfect soldiers of Order. They are trained to be masters in swordsmanship, archery and magic making them some of the most powerful Daedra. Some tales say they were once mortals who worshiped Jyggalag and turned their flesh hard and rough as crystal and turned themselves into mindless minions of the ruler of logic and order.

Trivia

 * Their armor appears as though it is made from the same material as the Obelisks.