Não está claro quantos detalhes são conhecidos, mas considerando o número de pessoas envolvidas, seria inevitável que os Martells aprendessem os detalhes cruéis de seu destino.
The Martells themselves were enraged with the murder of Elia and her children. Oberyn wanted to continue the war and champion the cause of Viserys Targaryen, the only surviving Targaryen prince, but Doran Martell, who had succeeded his mother as ruler of Dorne, knew that they were not strong enough and made his peace.
A raiva de Oberyn na verdade parece vir de aprender o destino de sua irmã :
Oberyn had a very close relationship with his sister Elia. Following the Sack of King's Landing, when he learned that she was raped and murdered by a Lannister knight, Gregor Clegane, along with her son and how her daughter was killed by another Lannister knight (Amory Lorch), he attempted to raise Dorne for Viserys. The new Hand, Jon Arryn, was able to keep the peace, but Oberyn has desired revenge ever since.
Tenha em atenção que estes links vão para páginas wiki que contêm inúmeros spoilers WRT the books e possivelmente o programa de TV.
De "Tyrion IV" em "A Clash of Kings", parece que ainda há um mistério não resolvido WRT sua morte:
“Why forget?” Tyrion smiled. “I’ve promised to deliver his sister’s killers, alive or dead, as he prefers. After the war is done, to be sure.”
Varys gave him a shrewd look. “My little birds tell me that Princess Elia cried a . . . certain name . . . when they came for her.”
“Is a secret still a secret if everyone knows it?” In Casterly Rock, it was common knowledge that Gregor Clegane had killed Elia and her babe. They said he had raped the princess with her son’s blood and brains still on his hands.
“This secret is your lord father’s sworn man.”