Featured in each Elder Scrolls games I-IV in some way or another, Uriel Septim VII was the 21st emperor of the Third Empire. He was the last of the Septim Bloodline and Dynasty to sit the throne. However, his illegitimate son Martin, who’s life was ended fighting Mehnrunes Dagon, was proclaimed Emperor right before he died, never actually crowned.
In the Third Era year 389, during the events of TES: Arena, the Imperial Battlemage Jagar Tharn betrayed the throne. He imprisoned Uriel Septim VII in a plane of Oblivion, and subsequently used magic to pose as the Emperor for 10 years. The Eternal Champion, the player character in The Arena, reconstructed the Staff of Chaos and saved Uriel from his imprisonment.
Uriel is once again the catalyst of the plot of TES: Daggerfall. He sends the player on a mission to Daggerfall to free the ghost of King Lysandus and find and destroy an important diplomatic letter.
In TES: Morrowind, Uriel sent the protagonist to Morrowind, under the suspicion that he was indeed the prophetic Nerevarine.
Uriel then ruled Tamriel until year 433, when his three sons and legitimate heirs were murdered by the Mythic Dawn cult. The events of TES: Oblivion take place soon after this. The player character meets Uriel right before his death in the sewer dungeons of the Imperial Prison. He entrusts the Champion of Cyrodiil with the Amulet of Kings, sensing that his fate is about to come to an end:
“These are the closing days of the 3rd Era, and the final hours of my life.”
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