Daenys Targaryen (The Dreamer)

Daughter of Aenar the Exile, called Daenys the Dreamer for the visions that came to her in sleep. Twelve years before the Doom, she foresaw the fire that would shatter Valyria, and her father believed her, and so saved House Targaryen from the fate that consumed every other dragonlord. She later wed her brother Gaemon, keeping the blood of the dragon pure on Dragonstone.