Obara Sand

Obara Sand was the eldest child of Prince Oberyn Martell, one of the Sand Snakes, and a formidable warrior. Along with Ellaria Sand, the paramour of her father, and her half-sisters Nymeria Sand and Tyene Sand, she takes part in the Coup in Dorne, during which they seize power in Dorne from the legitimate House Martell. However, she is slain by Euron Greyjoy when he ambushes the Iron Fleet on its way to Sunspear.