 Olaf was the son of Hoskuld <unk> @-@ <unk> , a chieftain who lived in the <unk> region . According to Laxdæla Saga , Hoskuld purchased a mute thrall @-@ woman from a Rus ' merchant on <unk> while on a trading expedition to Norway , and made her his concubine while away from his wife Jorunn <unk> . When Hoskuld returned home to Iceland , he took the concubine with him . Despite Jorunn 's irritation , the concubine was accepted into Hoskuld 's household , though he remained faithful to Jorunn while in Iceland . The following winter the concubine gave birth to a son , to whom they gave the name Olaf after Hoskuld 's uncle , Olaf <unk> , who had recently died . Landnámabók mentions that Hoskuld and Melkorka had another son , Helgi , but he does not appear in Laxdæla . According to Laxdæla saga , Olaf was a precocious child , and could speak and walk perfectly by the age of two . One day Hoskuld discovered Olaf 's mother speaking to her son ; she was not , in fact , mute . When he confronted her she told him that she was an Irish princess named Melkorka carried off in a Viking raid , and that her father was an Irish king named " Myrkjartan " ( Muirchertach ) . Shortly thereafter squabbling between Jorunn and Melkorka forced Hoskuld to move his concubine and his son by her to a different farm , which thereafter was known as <unk> . 
