Rhaenyra Targaryen

Rhaenyra Targaryen was a princess during Maekar II’s rule. Subsequently she was betrothed, then married, to Trevan Lannister.

Blood and Fire
Rhaenyra, together with her children Jaesse and Visenya Lannister, and her husband Trevan Lannister, are invited to King's Landing for a betrothal feast, at which her children are betrothed to the Starks. At that feast, she helps Aegon, her brother, to assassinate Viserys Targaryen the Uncrowned. Aegon accuses his wife, Elayne, for killing Aerys, and has her arrested.