Nivemus had some pretty grasping demands at the end of that war. One proposal even had them claiming both Oligarch and Westmoor. Eventually even their ruler got sick of the demands that the people if Nivemus were making and stepped back from the negotiations, basically taking whatever they were given. (They did get a good deal, too.)
Actually I'm pretty sure that Nivemus was offered Westmoor, but they declined because they didn't have the nobles to manage it and they tried to use their refusal of Westmoor to gain Oligarch. Ultmately they gained almost no lands I think...
