Tessarion, known as the Blue Queen, was a dragon, apparently female, ridden by Prince Daeron the Bold during the Dance of the Dragons.
His scales, wings and breath were dark blue like cobalt while his crest, claws and belly scales were copper.
Still young, he was still a good fighter and more agile than his older counterparts. According to all accounts, Tessarion was three times smaller than Vermithor and nowhere near as scary.