 Jacob Grimm noted that if, as Adam of Bremen states, Fosite's sacred island was Heligoland, that would make him an ideal candidate for a deity known to both Frisians and Scandinavians, but that it is surprising he is never mentioned by Saxo Grammaticus.Grimm took "Forseti", ""praeses"", to be the older form of the name, first postulating an unattested Old High German equivalent *"forasizo" (cf.modern German "Vorsitzender" "one who presides").