His Radiance is the prince of Tira. He's a figurehead with no real power, but is adored with great respect by the Tiran people. At the end of River Secrets, it is presumed he enters a relationship with Napralina, the younger sister of Bayern's queen.
- His Radiance mentions that summer is the "season of the prince".
- The prince doesn't actually have a name, and won't until his wife gives him one once they are married.