Rhaenyra Targaryen is King Viserys' eldest daughter and only child by Queen Aemma Arryn of the Vale. She begins House of the Dragon as a promising young woman, itching to do her bit in ways that medieval women find difficult to comprehend. She resists the burden of duty for as long as possible and hopes to win glory on the battlefield for House Targaryen. She rides Syrax, loves cake, and wants to fly across the Narrow Sea with her childhood companion, the Lady Alicent Hightower.