King Sigurd went to a feast east in Viken along with his court, and rode past a house belonging to a great bonde called Simon. While the king was riding past the house, he heard within such beautiful singing that he was quite enchanted with it, and rode up to the house, and saw a lovely girl standing at the handmill and grinding. The king got off his horse, and went to the girl and courted her. When the king went away, the bonde Simon came to know what the object of the king's visit had been.
The girl was called Thora, and she was Simon the bonde's servant-girl. Simon took good care of her afterwards, and the girl brought forth a male child (A.D. 1047), who was called Hakon, and was considered King Sigurd's son. Hakon was brought up by Simon Thorbergson and his wife Gunhild. Their own sons also, Onund and Andreas, were brought up with Hakon, and were so dear to him that death only could have parted them.