Board Thread:Lore Discussion/@comment-8248675-20130606043855/@comment-8248675-20130914065648

By had to conquer, I only meant to say that Tiber tried conquering Morowind, Berenziah's parents obviously were killed during that time. Tribunal then made a deal with Tiber a Numidium for their self governance within the Empire. Argonians of Blackmarsh, also were smart enough to make a deal with Talos. Even though they didn't let him into their heartland, they allowed him to take control of the areas along the border of Blackmarsh.

Obviously, I haven't read enough in game books to know of another Alesian ruler.