The former royal house of the Seven Kingdoms, descended from the dragonlords of old Valyria. The Targaryens conquered and unified the Seven Kingdoms under Aegon I using dragons. They ruled for nearly three hundred years until Robert's Rebellion overthrew the Mad King Aerys II. The Targaryens practiced brother-sister marriage to keep the bloodline pure. Their words are 'Fire and Blood,' and the three-headed dragon is their sigil. Daenerys Targaryen, the last known heir, hatches three dragons from ancient eggs.