Viserys Targaryen

Viserys Targaryen  was the younger brother of the late Rhaegar Targaryen and the older brother of  Daenerys Targaryen and his bastard brother Alec Targaryen.

Until Alec was discovered, Viserys and Daenerys were the remnants of the exiled House Targaryen following Robert's Rebellion against their father Aerys II Targaryen, the Mad King. He claimed the Iron Throne as King Viserys III after his father was overthrown and killed in Robert's Rebellion but never sat on the Iron Throne before being killed by Khal Drogo for threatening Daenerys and her unborn son.