Alysanne Targaryen

Alysanne Targaryen, known as Alys by those who knew her best, was a human of Valyrian descent and a member of House Targaryen. She was the daughter of and. She was also the only half-sister and cousin of Rhaegal Targaryen and, during his reign as King of the Andals, the Rhoynar, and the First Men, she became his and reigned as  of Westeros. She became known as the "dragon queen" due to her ferocious personality.

Trivia

 * In 's ', as well as its television adaptation, ',, the son of Aegon, did not marry his own sibling.