When Hildur Arngrímsdóttir was born about 1642, in Húnavatnssýsla, Northwestern Region, Iceland, her father, Arngrimur Jonsson, was 74 and her mother, Sigridur Bjarnadottir: [ younger], was 41. She married Jón Þorláksson in 1665. They were the parents of at least 1 son and 2 daughters. She lived in Hvammur, Dalasýsla, Western Region, Iceland in 1703. She died in 1725, at the age of 83.