Alduin
Alduin, sometimes referred to as the World Eater, the Twilight God, and the First Dragon, is a mighty dragon who ruled over Skyrim during the Merethic Era. Worshipped as a god-king by the ancient Nords through the Dragon Cult, Alduin is considered the wellspring of the Nordic pantheon, as well as the harbinger of the apocalypse, and the Nordic god of time, and is believed to have a pivotal role in the reshaping of the world.