Tryggve Olafsson was king of Viken, Norway. Wikipedia
Born: 928 AD, Ringerike Municipality, Norway
Died: Bohuslän, Sweden
Grandchildren: Tryggvi the Pretender, Ragnhild Erlingsdottir av Sola, Uleb Ragnvaldsson, and more
Parents: Olaf Haraldsson Geirstadalf
Children: Olaf I of Norway and Ingeborg Tryggvasdotter
Place of burial: Nidaros Cathedral, Trondheim, Norway
Partner: Astrid Eiriksdatter