 However, on October 25, 1047 he died suddenly while in Denmark, either in Zealand or in Jutland, either in an accident or of a disease; accounts vary.Reports include falling overboard from one of the ships he was mustering to invade England and drowning, falling off a horse, and falling ill while on board a ship.He is said to have made Sweyn his heir in Denmark, and Harald in Norway; some say in a deathbed statement.