The War of Costrañan Succession
The war which led directly to the current geopolitical situation among The Three Kingdoms. When the Costrañan king died, he had no direct heir, and Pentonia and Autierre both presented candidates with the hopes of installing a puppet government. Autierre came out on top, gaining near-complete control over Costraña in the process. However, as a result of the peace negotiations, Pentonia gained near-complete control over the seas, as well as ownership of Chranogè, Autierre's colony on The Nameless Continent. The end of the war also left many members of the navy without a job, and some turned to piracy in response, forming The Democratic Council of the Skull Sea.