The poor inhabitants of Gralton are mostly the old aristocracy of Galt, all exiled or fled from the Red Revolution in that land. Many of these ruined nobles cannot accept their exile, and scheme and plot to regain their lands and wealth from the ruins of Galt. Every so often, a powerful noble gathers an expedition or finds the funds to pay adventurers. The nobles grow increasingly desperate, which brings both swindlers and false prophets calling, peddling hope or quick fixes. Many of the citizens in town behave quite strangely — some believe that a spirit of vengeance or an avatar of Calistria controls them. Certainly, the priests of Calistria are always present, preaching revenge, even on the steps of the temple of Cayden Cailean.
Sources: Pathfinder Chronicles Campaign Setting