Sage Ugaridge (?b - ?d)
 Baron Ulfe Gersen (?b - ?d)
Ulfgar the Unending was a Nord warrior from the Second Era. He and four companions embarked on a quest to find Sovngarde. However, his companions Nikulas, Erlendr, and Hunroor were betrayed by the wizard Grimkell, who turned them into stone pillars at Brodir Grove on Solstheim. They were avenged by Ulfgar, who killed the wizard. Five hundred years later, Ulfgar was somehow still alive, and still searching for Sovngarde. In 3E 427, he met the Nerevarine, who agreed to help him find the Nordic paradise. Upon investigating, the Nerevarine informed the ancient Nord that the only way to reach Sovngarde is to die an honorable death in combat. Ulfgar challenged the Nerevarine, hoping to meet such a fate. The Nerevarine accepted his challenge, and the two engaged in mortal combat. In the end, a fourth pillar appeared at Brodir Grove, and Ulfgar met his old friends in Sovngarde. For more information, see the lore article.
 Jarl Ulfric Stormcloak (?b - ?d)
Ulfric Stormcloak is known as the rebellious Jarl of Windhelm who started the uprising against Imperial rule known as the Stormcloak Rebellion. An incredibly divisive and controversial figure, Ulfric brought the Empire to its knees and pitted Nord against Nord in a bid for religious freedom and political independence for Skyrim. For historical information on Ulfric, see the lore article.
Umaril the Unfeathered was an Ayleid sorcerer-king who once ruled Tamriel and enslaved the human population. Umaril was a "half-Elf", born of an Ayleid mother and a divine father. His alliance with Meridia granted him immortality: upon death, his spiritual form would live on and inevitably return. Thus, Umaril would "never know death". Umaril was similar to Meridia's Daedric servants, the Aurorans, though much larger. He favored "ruin-from-afar", preferring to send minions to attack and weaken his foes before he would risk direct combat.
Umaril was defeated by Pelinal Whitestrake at the start of the First Era during the human uprising against the Ayleids, their "Slavemasters", and the fall of the White Gold Tower. While Umaril escaped death, he was cast adrift in the "waters of Oblivion", and many thousands of years passed before he could return to Mundus. His return at the end of the Third Era was to seek vengeance upon the Divines who had brought about his fall. Aurorans under his command desecrated the chapel of Dibella in Anvil, and later the chapel of Mara in Bravil. He was finally defeated by the Divine Crusader before his plans could come to fruition.
 The Underking (?b - ?d)
The Underking is a title of uncertain origin that has been attached to a number of supernatural beings throughout history. Individuals who bear this moniker include:
- King Wulfharth (Ysmir), avatar of Shor, who fought the Tribunal at Red Mountain, was an ally of General Talos (then advisor of his son, Pelagius I) and lived and died three times.
- Zurin Arctus, who either betrayed or was betrayed by his master, Emperor Tiber Septim. He also destroyed Numidium twice.
The controversy on the identity stems from the fact that although most sources call Arctus the Underking, there are some sources, such as The Arcturian Heresy, that call Wulfharth the Underking. For more information on the two, see their respective Lore articles.
Son of Empress Kintyra, Uriel I became the fourth Emperor of Tamriel after his mother's death in 3E 48. Uriel was the first of several emperors to use the name Uriel. He was the great lawmaker of the Septim Dynasty, and a promoter of independent organizations and guilds. The Fighters Guild and the Mages Guild increased in prominence throughout Tamriel during his reign. His son Uriel Septim IIassumed the throne upon his death. The level of Tamrielic unity he fostered would not be seen again until the days of Emperor Pelagius Septim IV.
Uriel Septim II became the fifth Emperor of Tamriel after the death of Uriel I in 3E 64. Tragically, the rule of Uriel II was cursed with blights, plagues, and insurrections the likes of which wouldn't be seen again until the reign of his grandson Emperor Antiochus. His tenderheartedness inherited from his father did not serve Tamriel well, and little justice was done. Uriel II died in 3E 82 after 18 years of rule and was succeeded by his son, Pelagius II, to whom he left many problems due to his poor financial and judicial management. He was a character in the popular historical fiction The Wolf Queen.
Uriel III is the first cousin of Empress Kintyra II and son of Queen Potema of Solitude. Uriel III accused Kintyra of being a bastard, alluding to the famous decadence of the Imperial City during her father's reign. When this accusation failed to stop her coronation, Uriel bought the support of several disgruntled kings of High Rock, Skyrim, and Morrowind, and, with Queen Potema's assistance, coordinated three attacks on the Septim Empire. The first attack occurred in the Iliac Bay that separates High Rock and Hammerfell. Kintyra II's entourage was destroyed and the Empress was taken captive. Uriel III later killed Kintyra II in 3E 114.
Uriel III was eventually proclaimed Emperor of Tamriel in 3E 121. Empress Kintyra II later died in captivity. In the third major and final attack against the Imperial City itself was relatively quick taking only a fortnight to secure. He named himself Uriel Septim III, even though his true name was Uriel Mantiarco from his father. Uriel III was captured at the Battle of Ichidag in Hammerfell in 3E 127. En route to his trial in the Imperial City, a mob overtook his carriage and burned him alive within it. In Skyrim during the late Third Era, there was an strong underground movement called the Hörme which believed Potema and her deposed son were the last of Tiber Septim's true blood and under that principle led raids against Imperial interests in the province. More details of his life can be found in Biography of the Wolf Queen. Also, he was a character in the popular historical fiction The Wolf Queen.
Uriel Lariat, child of Empress Katariah and her Imperial consort, left Wayrest in 3E 202 to reign as Uriel IV upon the death of his half-brother Cassynder. Legally, Uriel IV was a Septim: Cassynder Septim had adopted him into the family, when he had become King of Wayrest. Nevertheless, to the Council and the people of Tamriel, he was a bastard child of Empress Katariah. Uriel did not possess the dynamism of his mother, and his long forty-three year reign was a hotbed of sedition. Uriel IV's reign was a difficult and long one. Few of the Elder Council could be persuaded to accept him fully as a blood relation of Tiber. The Council had assumed much responsibility during Katariah I's long reign and Cassynder I's short reign, and a strong-willed alien monarch like Uriel IV found it impossible to hold their unswerving fealty. Time and time again, the Council and Emperor were at odds; and time and time again, the Council won the battles. Since the days of Pelagius II, the Elder Council had consisted of the wealthiest men and women in the Empire, and the power they wielded was overpowering. Uriel IV died in 3E 247 with the throne going to a cousin more closely related to Tiber Septim, his cousin Cephorus II. During his reign in 3E 246, the Elder Coundil, in an attempt to clear up some questions of property rights in Skyrim and discourage absent and foreign landlords, decreed that any man without a liege who occupied a castle for more than three months would be granted the rights and titles of that estate.
Uriel V was crowned Emperor in 3E 268 and turned opinion back toward the potential power of the Empire. Turning the attention of Tamriel away from internal strife, Uriel V embarked on a series of invasions. In 3E 271, he conquered Roscrea (which would remain under the Emperor's direct control until the late Third Era, when it was annexed by Solitude. He is said to have been influenced in these early years by the Psijic Order. In 3E 276, Cathnoquey is conquered; in 3E 279 Yneslea; and in 3E 284 Esroniet was conquered. In 3E 288, Uriel V invaded Akavir, which was ultimately a failure. He was killed in Akavir in 3E 290 on the battlefield of Ionith. Nevertheless, Uriel V holds a reputation second only to Tiber Septim as the great warrior emperor of Tamriel. Uriel V was succeeded by his son, Uriel VI. Despite his ultimate failure, his many successes along the way earned him a reputation as a military genius. He employed a battlemage named Hethoth who fought in Akavir, though he was never formally appointed as Imperial Battlemage. Details of his defeat in Akavir can be found in Disaster at Ionith.
Uriel VI was crowned when his father, Uriel V, was killed in Akavir on the battlefield of Ionith in 3E 290 when Uriel VI was but five years old. In fact, Uriel VI was born only shortly before his father left for Akavir. Uriel V's only other progeny, by a different woman, were the twins Morihatha and Eloisa, who had been born a month after Uriel V left. The consort Thonica as the boy's mother was given a restricted Regency until Uriel VI reached maturity. The Elder Council retained the real power, as they had ever since the days of Katariah I. The Council so enjoyed its unlimited and unrestricted freedom to make laws (and profits), Uriel VI was not given full license to rule until 3E 307, when he was 22 years old. He had been slowly assuming positions of responsibility for years, but both the Council and his mother, who enjoyed even her limited regency, were loath to give him reign. By the time he came to the throne, the mechanisms of government gave him little power, but the power to veto.
Uriel VI's power to veto was regularly exercised and by 3E 313 he could boast with conviction that he truly did rule Tamriel. He utilized defunct spy networks and guard units to bully and coerce the difficult members of the Elder Council. His sister was his usual ally, after her marriage to Baron Ulfe Gersen of Winterhold brought her considerable wealth and influence. Uriel VI died in 3E 320 when he fell from his horse and could not be saved by the finest Imperial healers. His beloved sister Morihatha took the throne.
Uriel Septim VII was the reigning emperor during 3E 368 – 433. He was the son of Pelagius IV and was the twenty-first emperor of the Septim Dynasty. During his rule he had three legitimate sons to Empress Caula Voria: Crown Prince Geldall, Prince Enman and Prince Ebel.
When Pelagius IV died in 3E 368 after an astonishing twenty-nine year reign, Tamriel was closer to unity than it had been since the days of Uriel I. Uriel Septim VII, son of Pelagius IV, succeeded him. He had the diligence of his grand-aunt Morihatha, the political skill of his grand-uncle Uriel VI, and the military prowess of his great-grandfather Uriel V. For sixty-five years he reigned and brought justice and order to Tamriel.
 Uthilla Abuhk (?b - ?d)
- ^ a b c d e f Brief History of the Empire, Part IV — Stronach k'Thojj III, Imperial Historian
- ^ Events of Oblivion
- ^ a b c d Brief History of the Empire, Part I — Stronach k'Thojj III, Imperial Historian
- ^ a b Brief History of the Empire, Part II — Stronach k'Thojj III, Imperial Historian
- ^ a b Pocket Guide to the Empire, 3rd Edition: The Throat of the World: Skyrim — Imperial Geographical Society, 3E 432
- ^ a b c d Brief History of the Empire, Part III — Stronach k'Thojj III, Imperial Historian
- ^ The Fall of the Usurper — Palaux Illthre
- ^ The Rear Guard — Tenace Mourl
- ^ On Artaeum — Taurce il-Anselma
- ^ Pocket Guide to the Empire, 3rd Edition: Other Lands — Imperial Geographical Society, 3E 432
- ^ Response to Bero's Speech — Malviser, Battlemage
- ^ Notes For Redguard History — Destri Melarg