The Mountain and the Viper - The Trial of Tyrion Lannister
There were fifty yards between them.
Prince Oberyn advanced quickly, Ser Gregor more ominously. The Red Viper
stopped and called out, “Have they told you who I am?”
Ser Gregor grunted through his breaths. “Some dead man.”
“I am Oberyn Martell, a prince of Dorne. Princess Elia was my sister.“
“Elia Martell, Princess of Dorne. You raped her. You murdered her. You killed her children.”
“Did you come to talk or to fight?”
“I came to hear you confess.” The Red Viper landed a quick thrust on the Mountain’s belly, to no effect. Gregor cut at him, and missed. The long spear lanced in above his sword. Oberyn was making good use of that, and the length of his spear, and his quickness.
“You raped her,” he called, feinting. “You murdered her,” he said, dodging a looping cut from Gregor’s greatsword. “You killed her children,” he shouted, slamming the spearpoint into the giant’s throat.
The Mountain reeled, swayed, then collapsed face first on the ground. His huge sword went flying from his hand. Slowly, ponderously, he rolled onto his back.
“EEEEELLLLLLIIIIIAAAAA!” Oberyn screamed, as he drove the spear down with the whole weight of his body behind it. “If you die before you say her name, ser, I will hunt you through all seven hells,” he promised. Tyrion saw with horror that the Mountain had wrapped one huge arm around the prince, drawing him tight against his chest.
“Elia of Dorne,” they all heard Ser Gregor say “I smashed her fucking head in. Like this.“ Ellaria Sand wailed in terror, and Tyrion’s breakfast came boiling back up while the Mountain himself collapsed. Tyrion was sentenced to die. I put my life in the Red Viper’s hands, and he dropped it.
from A Storm of Swords Chapter 70 (Tyrion X) - shortened.