c. 1315–c. 1390
Sigurd Havtoresson was a fourteenth-century Norwegian nobleman, landowner and royal councillor whose lineage connected him directly to the old Norwegian monarchy. Born around 1315, he was a son of Havtore Jonsson and Agnes Håkonsdatter, a daughter of King Håkon V. Together with his brother Jon, Sigurd inherited extensive estates and belonged to the highest level of the Norwegian aristocracy. He participated in noble opposition to his cousin King Magnus Eriksson during the 1330s.
Sigurd married Ingebjørg Erlingsdatter, daughter of the powerful magnate Erling Vidkunsson, and through inheritance became one of the greatest landowners in Norway. He served in important judicial and administrative roles, including as lagmann in Oslo, and remained active in the kingdom’s government through much of the century despite earlier political conflict. His descendants retained exceptional dynastic significance: through his daughter Agnes he became the grandfather of Sigurd Jonsson, one of fifteenth-century Norway’s leading nobles. Sigurd died around 1390.
In Sigrid Undset’s Kristin Lavransdatter, II: The Wife, Erling Vidkunsson, Ingeborg of Norway and Knud Porse stand behind the regency politics of the period, while Erlend joins a conspiracy associated with the king’s cousins Jon and Sigurd Havtoresson.