UNBOWED, UNBENT, UNBROKEN
House Martell is considered one of the great houses of Westeros. It ruled the peninsula of Dorne in the far south of the continent from their castle Sunspear. The Martells were never conquered by the Targaryens, though they were loyal to the Iron Throne. Doran Martell and his son, Trystane, were assassinated by Sand Snakes, who carried Martell blood through their father Oberyn Martell.
Under the leadership of Ellaria Sand and the Sand Snakes, the forces of House Martell and Dorne were aligned to support the Targaryens after they declared war against Lannister. Following the deaths of the older Sand Snakes and Ellaria’s imprisonment, a Martell seized lordship of Dorne, becoming its prince.