She had been born on Dragonstone nine moons after their flight, while a raging summer storm threatened to rip the island fastness apart. They said that storm was terrible. The Targaryen fleet was smashed while it lay at anchor, and huge stone blocks were ripped from the parapets and sent hurtling into the wild waters of the narrow sea. Her mother had died birthing her, and for that her brother Viserys had never forgiven her.
Here's a dumb question. Is it possible that Daenerys was conceived the night that Aerys burned Rickard Karstark? I seem to recall that Aerys would get aroused after burning someone and that Dany was born towards the end of the Rebellion. Could that be the meaning of "child of three"? It would be an interesting parallel to the "only death can pay for life" that births Dany her dragons.