In 2E 582, the Vestige and Valaste of the Mages Guild succeeded in creating a corporeal form of Shalidor's soul.
Eyevea was later transported to the Shivering Isles, a decision which Shalidor would come to regret. Sometime during the First Era, Sheogorath made a deal with the famed wizard Shalidor, giving him the Folium Discognitum for his work on Glamoril, in return for the island of Eyevea. Haskill, who would later become Sheogorath's chamberlain, was said to have mantled Sheogorath in an event in a previous time. As a part of his curse after gaining control of the Shivering Isles, Jyggalag transforms back into Sheogorath who then recreates the realm back to one of madness. This event is known as the Greymarch, when Jyggalag destroys the Isles and turns them into the realm of perfect order. However, at the end of every era Jyggalag is allowed to revert to his original form and wreak havoc in this realm of Oblivion. Since then the Shivering Isles have been ruled by Sheogorath.
Because of it, they cursed Jyggalag to live a life of a madman, the thing that he hated most. He was so powerful that the other Princes feared him.
The Shivering Isles were once the realm of Jyggalag, the Daedric Prince of order.
