Most kings ruled from palaces or halls—but Cnut the Great, Viking ruler of England, Denmark, and Norway, governed from the River Thames, aboard his longship. After defeating Edmund Ironside and consolidating power in 1016, Cnut continued to embody the Viking tradition of leadership from the sea. He often held council, managed affairs, and received envoys from the deck of his warship, stationed on the river that ran through the heart of his new kingdom. This wasn’t just habit—it was symbolism. By