Däthedr was a male elven lord, the leader of Sílthrim, as well as advisor to Queen Islanzadí. He was one of the most skilled magicians in all of Alagaësia but he wasn't among the twelve sent to protect Eragon because he was of noble birth. Däthedr was very good friends with Arya, as well as was present at Ceunon, Gil'ead, and the Battle of Ilirea where Evandar was slain. He pierced the illusion wards that had been placed around the Imperial Army to stop people scrying it.