I've been working on some of the family history of Rene XIV for his novel. As I did, I have broken into a whole new layer of the history of another of the major nations of Ixilon, New Avignon.
Now I'm discovering that their royal family has a very interesting history, torn by an accusation of adultery that may have been false. An embittered prince, certain that his mother has been falsely accused and wrongly executed, flees rather than submit to the king's command to enter a monastery.
Thus begins a pirate dynasty that troubles the Great Lakes for generations, until they finally displace the original royal family, thus vindicating the original prince's claims.
Of course the lake pirates are quite a bit different from your standard pirates of the Spanish Main. They're on fresh water in a temperate climate, so they're going to have to have safe harbors in which to hide when the lakes freeze over for the winter. And since there are several major waterfalls in the Great Lakes in Ixilon, just as there are in our world, they've got to be able to masquerade as respectable merchants in order to get through the locks.
One of these days I'm going to have to write the stories of the lake pirates. But of course first I need to have time.