|Appears in||Morrowind, ESO|
In its time, Ularradallaku was a temple dedicated to Mehrunes Dagon, the Daedric Prince of Revolution and Destruction. It subsequently fell into ruin, becoming covered in overgrown plants. During the Interregnum circa 2E 583, Ularradallaku's ruins were used by the Circle of Champions, a guild consisting of the greatest gladiators and fighters found all throughout Tamriel. Fighters from all three sides of the Alliance War came to the Ularra battleground to fight for the glory of the Fire Drakes, Pit Daemons, and Storm Lords arena teams.
Eventually, the ruins were abandoned by the Circle of Champions. The Ordinators had the duty of keeping worshippers from restoring old Daedric sites such as Ularradallaku, as worship of the Bad Daedra was forbidden by the Tribunal Temple. However, by 3E 427 the Ordinators had begun to neglect this duty due to being occupied with the suppression of heretics and dissidents, allowing many of the temples to come back to life. Ularradallaku was one such site, being reclaimed by worshippers of Mehrunes Dagon. One of the worshippers, an Altmer named Inganar, was one of the wielders of the Threads of the Webspinner, specifically the Glove of Sanguine Safekeeping. The glove was retrieved by the Nerevarine that same year.