One story about this ruler says that, in order set fire to a town in Sicily, he captured a bunch of sparrows and put wax and brimstone on their wings so that they would set fire to the thatched houses in which they nested.  
One story about this ruler says that, in order set fire to a town in Sicily, he captured a bunch of sparrows and put wax and brimstone on their wings so that they would set fire to the thatched houses in which they nested.  This ruler is referred to as the "son of the King of Varangia" in the Strategikon, in homage to the time he spent in the service of Michael IV and the Empress Zoe in Constantinople.  Upon returning home, his used his great wealth to force joint rule with Magnus the Good. After some wars against Einar and Svein Ulfsson of Denmark, he was supported as rightful heir to the English throne by Tostig, Earl of Northumbria, who died in the same battle as this man. For 10 points, name this King of Norway, a contender for the English throne who lost at the Battle of Stamford Bridge.
One story about this ruler says that, in order set fire to a town in Sicily, he captured a bunch of sparrows and put wax and brimstone on their wings so that they would set fire to the thatched houses in which they nested.  
Harald Haadrada [or Harald Sigurdsson; or Harald III]