Some sources list his birth in abt 600 with his son's birth in abt 620. Some genealogists list his father as Hroar Rolfsson born abt 580. Hroar Rolfsson was son of Rolf Kraki Helgasson born abt 560 while others list his parents as Hroar Frodasson and his wife Sigris (listed here as his grandparents).