sentences:  According to Norwegian royal biographies from the late 12th century, the English court introduced him to the Christian religion.On the news of his father's death, King Athelstan provided Haakon with ships and men for an expedition against his half-brother Eric Bloodaxe, who had been proclaimed king of Norway.At his arrival back in Norway, Haakon gained the support of the landowners by promising to give up the rights of taxation claimed by his father over inherited real property.