Jon Havtoresson

Jon Havtoresson (c. 1312–1395) belonged, with his brother Sigurd, to one of the most powerful families in Norway. His mother Agnes was an illegitimate daughter of King Haakon V Magnusson; his father, the knight Havtore Jonsson, came from the Sudrheim family. As probably the eldest son, Jon inherited the manor of Skea, with estates in Solør and Odalen, and held further lands in Østfold.

He governed Borgarsysla and advised both Magnus Eriksson and Haakon VI. His marriage to Birgitta Knutsdatter produced sons Ulv, Håkon and Brynjolv, all three members of the Council of the Realm; his daughter Cecilia married the Swedish knight Ulv Holmgeirsson.