Ragnar Lodbrok (Old Norse: Ragnarr Loðbrók, “Ragnar Hairy Breeches”) was a legendary Norse ruler and hero from the Viking Age described in Old Norse poetry and several sagas. He is said to be the son of Sigurd Ring, who was king of Sweden. Ragnar became known as the scourge of France and England and as the father of many renowned sons, including Ivar the Boneless, Björn Ironside, Halfdan Ragnarsson, Sigurd Snake-in-the-Eye, and Ubba. He was eventually seized by his foe, King Ælla of Northumbria, and killed by being thrown into a pit of snakes. His sons bloodily avenged him by invading England with the Great Heathen Army.