Who was the half-brother of Sweyn Haakonsson that participated in the conquest of English by King Canute the Great?
Sweyn Haakonsson: Sweyn Haakonsson (Old Norse: "Sveinn Hákonarson", Norwegian: "Svein Håkonsson" ) (died c. 1016) was an earl of the house of Hlaðir and co-ruler of Norway from 1000 to c. 1015. Sweyn Haakonsson:  After the battle of Svolder in the year 1000, Sveinn became co-ruler of Norway with his half-brother, Eiríkr Hákonarson. Eiríkr Hákonarson:  He participated in the Battle of Hjörungavágr, the Battle of Svolder and the conquest of England by King Canute the Great.
Eiríkr Hákonarson