Claim: Helga Moddansdóttir's sibilings were Angus the Generous and sisters Frakkök and Þorleif, all four children having both Norse and Gaelic names.
Evidence: Whatever their origins, in addition to the titled Ótarr, Helga's siblings were, Angus "the Generous" and her sisters Frakkök and Þorleif. These children had both Norse and Gaelic names, whereas Orcadian families tended to have exclusively Norse names.