What was the name of the father of XXX?
Ingibiorg Finnsdottir
Ingibiorg Finnsdottir (Standard Old Norse: Ingibjörg Finnsdóttir) was a daughter of Earl Finn Arnesson and Bergljot Halvdansdottir (Halfdansdottir), a niece of the Norwegian Kings Saint Olaf and Harald Hardraade.
Finn Arnesson