Spanish claims to the Alaska region dated to the papal bull of 1493, but never involved colonization, forts, or settlements. Instead, Madrid sent out various naval expeditions to explore the area and to claim it for Spain. In 1775 Bruno de Hezeta led an expedition; the "Sonora", under Bodega y Quadra, ultimately reached latitude 58° north, entered Sitka Sound and formally claimed the region for Spain. The 1779 expedition of Ignacio de Arteaga and Bodega y Quadra reached Port Etches on Hinchinbrook Island, and entered Prince William Sound. They reached a latitude of 61° north, the most northern point attained by Spain.