Daenerys Targaryen is the daughter of King Aerys II Targaryen (also referred to as "The Mad King") and his sister-wife Queen Rhaella, and is one of the last survivors of House Targaryen.
King Aerys II Targaryen ("The Mad King")\n\n The final undisputed monarch of the Seven Kingdoms from House Targaryen, King Aerys II Targaryen is widely known as the "Mad King" who was usurped by King Robert I Baratheon. Aerys II is a direct descendant of King Viserys I Targaryen through his daughter Rhaenyra.