Elia Martell, first wife of Rhaegar Targaryen Elia Martell of Dorne, the first wife of Rhaegar Targaryen was killed by the Mountain. Her brother Oberyn Martell is seen taking revenge with Ser Gregor Clegane, the Mountain, who raped and killed his sister. Prince Rhaegar and Elia had two sons whose name was Aegon and Rhaenys. They were killed at young age. Later on, Prince Rhaegar fell in love with Lyanna Stark, Eddard Stark’s sister, and married her in a secret ceremony in Dorne. In the series, Game of Thrones there is a very little information about this character.