The Rialla is a fictional event in Melanie Rawn’s fantasy novels of the Dragon Prince and Dragon Star trilogies. The Rialla is a gathering of Lords and Princes, which takes place every three years. The High Prince oversees the Rialla along with the Lady or Lord of Goddess Keep. The Princes meet to establish laws, make treaties, and to trade. Lords often knight their charges and also marry. In addition to the political maneuverings, the Rialla is also a five day fair. Merchants from all over the Continent come to trade, including horse breeders. There are great races at the Rialla which everyone attends no matter one's rank. Traditionally the Rialla was held near Waes of Meadowlord, but has been moved to Dragon's Rest in Princemarch.