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. He was the son of earl Hákon Sigurðarson. He is first mentioned in connection with the battle of Hjörungavágr, where the "Heimskringla" says he commanded 60 ships. After the battle of Svolder in the year 1000, Sveinn became co-ruler of Norway with his half-brother, Eiríkr Hákonarson. After Eiríkr went to England in 1014, Sveinn was co-ruler with Hákon Eiríksson. In 1015, Óláfr Haraldsson arrived in Norway and claimed the throne. He defeated Sveinn and his allies in the battle of Nesjar. Sveinn retreated to Sweden, intending to muster a force to retake Norway but he died of an illness before he could return.
Eadred Eadred (also Edred) (923 – 23 November 955) was King of the English from 946 until his death. He was the son of Edward the Elder and his third wife Eadgifu of Kent, and a grandson of Alfred the Great. Eadred came to the throne following the assassination of his older brother, Edmund I. The chief achievement of his reign was to bring the Kingdom of Northumbria under total English control, which occurred with the defeat and expulsion of Eric Bloodaxe in 954. Eadred died at the age of 32 having never married, and was succeeded by his 15-year-old nephew, Eadwig.