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.
Liðsmannaflokkr Liðsmannaflokkr ("household troop's poem") is the title of a skaldic poem in ten stanzas describing the capture of London by Cnut the Great in 1016, preserved in "Óláfs saga helga" and "Flateyjarbók" (fol. 186v), and in a shorter version in "Knýtlinga saga".