Emperor Uriel Septim is an imperial noble, son of Pelagius IV and twenty first emperor of the Septim dynasty. He’s ruled for 65 years and forty-four of his years are covered across the games Arena, Daggerfall, Morrowind, and Oblivion with him playing a central role in each.
Oblivion opens at the end of his reign with Uriel going into hiding after the triple assassination of his sons Geldall, Enman and Ebel. He attempts to flee the Imperial City using a secret underground tunnel and invites the player to accompany him. Before he is slain by the Mythic Dawn he asks that his illegitimate son be found and named emperor and hands over the amulet of the kings which his heir must wear to prevent the barriers between Tamriel and Oblivion from disappearing and allowing the gates of Oblivion to open.