see:
http://www3.dcs.hull.ac.uk/cgi-bin/gedlkup/n=royal?royal06182

Child 1: Haraldsson, Thorfinn
Child 2: Haraldsson, Heinrek
Child 3: Haraldsson, David, Earl of Orkney
Child 4: Haraldsson, John I, Earl of Orkney
Child 5: Haraldsdottir, Gunnhild
Child 6: Haraldsdottir, Herborga
Child 7: Haraldsdottir, Langlif

Father: , Madoch of Atholl, Earl of Atholl
Mother: Hakonsdottir, Margaret, Countess of Orkney
see:
http://www3.dcs.hull.ac.uk/cgi-bin/gedlkup/n=royal?royal06182