Who was the half-brother of Sweyn Haakonsson that participated in the conquest of English by King Canute the Great?
Eiríkr Hákonarson Eric Haakonsson (960s – 1020s) was Earl of Lade, Governor of Norway and Earl of Northumbria. He was the son of Earl Hákon Sigurðarson and brother of the legendary Aud Haakonsdottir of Lade. He participated in the Battle of Hjörungavágr, the Battle of Svolder and the conquest of England by King Canute the Great.
Hrethel Hrethel (Old English: "Hrēðel" ; Proto-Germanic: "*Hrōþilaz" ) was the king of the Geats, in "Beowulf". He was the son or son-in-law of Swerting and he had three sons Hæþcyn, Herebeald and Hygelac. He also had a daughter who married Ecgþeow and had the son Beowulf.