Princess Aerea Targaryen flees on Balerion

« Princess Aerea was gone. She had fled Dragonstone as dawn broke, stealing into the yards and claiming a dragon for her own. And not just any dragon. “Balerion!” Rhaena exclaimed. “She took Balerion, the mad child. No hatchling for her, no, not her, she had to have the Black Dread. Maegor’s dragon, the beast that slew her father. Why him, if not to pain me? What did I give birth to? What kind of beast? I ask you, what did I give birth to?” “A little girl,” Queen Alysanne said, “she is just an angry little girl.” »
- Fire and Blood Vol. 1, George R.R. Martin