Queen Rhaella Targaryen
From Asoiaf
Queen Rhaella of House Targaryen was the daughter of Jaehaerys II Targaryen, King of the Seven Kingdoms.
She married her brother King Aerys II. They had three children, Rhaegar, Viserys and Daenerys.
Rhaegar was slain on the Trident by Robert Baratheon. Aerys was slain by Ser Jaime Lannister during the Sack of King's Landing.
Rhaella died in childbed on Dragonstone.