Gonglu, the Dragon Emperor, is the current ruler of Tsuandan. He is believed to have claimed his throne sometime about a century hence. 
Some sources, including the official records of Tsuandan, claim Gonglu to be a literal dragon. Others are more sceptical and hold a saurian overlord more likely. They point to that the Zhong have long claimed to be descendants to a chosen people who lived side by side with saurians.