The Cadsoline Peninsula is a small peninsula found in the central region of Impatria. It juts southwest from the Verdant Plains and into the Sea of Kings, and the Cadsoline River flows down its center to reach the ocean. The peninsula is within the borders of the Province of Tersodia in the Holy Empire of Acolytius, and the Empire's capital city of Vatepor sits at its end.
While it is unknown which came first, the Cadsoline Peninsula shares a name with the Cadsolites: An early tribe of Imperials who were the first settlers of the region. The peninsula was highly coveted for its centralized location in the Sea of Kings, and the Cadsolites eventually created the city that would later become Vatepor. While the Cadsolites were later pushed out by more powerful forces, the Cadsoline Peninsula has still acted as a figurative heart for the prosperous trade systems of the mightiest nations in all of Asobria.