 The Battle of Svolder ended in the death of the Norwegian king.Olaf fought to the last on his great vessel "Ormrinn Langi" (Long Serpent), the mightiest ship in the North, and finally leapt overboard and was seen no more.In the early 11th century a Viking chieftain named Tryggvi invaded Norway, claiming to be the son of Olaf and Gyda.