hiallt
born:
died:
ascendency: vikings
plausible descendency: d'hauteville family[1]
plausible descendency: de crepon family
hiallt is a legendary warrior that was said to be a friend of rollo. his existence is highly dubious, but the fact that the pope annulled robert guiscard's first marriage provides strong evidence for a close genealogical relationship between the d'hauteville and de crepon families. that's all there is to this link.
[1]: the deeds of count roger of calabria & sicily & of duke robert guiscard his brother , p. 1-5