Auberon Muircetach, King of the Alders, was the king of the Aen Elle elves, an Aen Saevherne, and ruler of Tir ná Lia. He was determined to "take back" what had been stolen from the Aen Elle by Cregennan when he took Lara Dorren, Auberon's daughter. To do this, he had Ciri, a descendant of the two lovers, brought to him and groomed to produce an heir. He was not brutal, but nor would he be dissuaded from his goal.
He died before he was able to impregnate Ciri; killed, possibly unwittingly, though likely not, from an overdose of an aphrodisiac or performance enhancer at the age of over 650 years supplied by Eredin Bréacc Glas, who viewed himself as a more suitable ruler.
- Auberon Muircetach, also known as King of the Alders, was ruler of the far-off land of Tir ná Lia - the world which is home to Avallac'h and the Wild Hunt. He died after being poisoned by Eredin Bréacc Glas, who then declared himself king. At the time of his death Auberon had been exhausted and embittered by over six hundred and fifty years of living.
- Though he was a wise Aen Saevherne, he used the drug fisstech.
- In medieval and renaissance literature, Oberon, or Auberon, is the King of Fairies. He is a prominent character in A Midsummer Night's Dream by William Shakespeare.
- Another reference to classical literature may be Auberon's sobriquet "King of the Alders" which is a literal translation of Erlkönig - a mythical king of the fairies from the German and Scandinavian folklore. He is the main protagonist of Johann Wolfgang von Goethe's 1782 poem of the same name.
- The scene in the Witcher 3: Wild Hunt, where Ge'els is shown Auberon's death, is actually a fabrication. Eredin never intended on killing the king as shown by Avalla'ch via the oneiromancer, Corinne Tilly. In the books, Eredin gave an aphrodiasiac to Auberon to supposedly help in his waning desire to impregnate Ciri at her time in the Aen Elle world. Auberon accidentally overdosed on the aphrodiasiac and died, with Ciri being present. Ciri told Eredin of this and the leader of the Red Riders was actually shocked to find out about the king's untimely demise. Why Ciri never called Avalla'ch out on this in the game is unknown.