Board Thread:General Discussion/@comment-24.119.198.177-20130930002431/@comment-37132825-20190620201008

Though it is somewhat ambiguous, Skyrim does clearly hint that Sheogorath is the Hero of Kvatch, as Sheogorath directly recalls the experiences of the Hero of Kvatch. While it is still possible that the Sheogorath we see in Skyrim is not the Hero of Kvatch, the Hero of Kvatch was definitely Sheogorath at one point; whether he continued to be Sheogorath, died, and/or was replaced by another entity (such as Jyggalag) is unknown.