Warlord Ceyran was a minor Ayleid warlord from the middle of the First Era. He was a member of the Rulanyil clan and a rumored devotee of Molag Bal. It is unknown if he was born in the clan's original home of Vilverin before the Ayleid purges in Cyrodiil, or in Rulanyil's Fall after his clan fled to Valenwood. Ceyran is most famous for building and losing three separate dominions during his long life. He was eventually killed by an unknown assassin in 1E 1102, and supposedly interred in Rulanyil's Fall.
By the time of the Interregnum, the ruins of Rulanyil's Fall had been converted into a private museum by a group called the Merethic Society. The centerpiece of the museum was the body of Ceyran, which was actually the corpse of an Altmer member of the Merethic Society who had died in a cave-in while repurposing the ruins. In 2E 582, the Worm Cult invaded the ruins in an attempt to resurrect Ceyran as a powerful undead servant. Fearing that the body would be exposed as an imposter, the Merethic Society sent adventurers into the ruins to prevent the ritual. The cultists only succeeded in binding Nanwen's awakened spirit to a sword, which the Society agreed to part with in order to continue displaying the corpse.