Vhagar, dubbed the Queen of All Dragons, is the dragon who was ridden by Visenya Targaryen during Aegon's Conquest. Although during this time she was the smallest of the trio that included Balerion and Meraxes, Vhagar was still large enough to swallow a horse whole, and her flames could melt armor. A hundred years later, during the reign of Viserys I Targaryen, she is the largest of all known living dragons and the last remaining dragon from the days of Aegon's conquest.