Agnes Haakonsdatter

Agnes Haakonsdatter (Old Norse: Agnes Hákonardottir; 1290–1319) was an illegitimate daughter of King Haakon V of Norway and a woman whose name remains unknown.
In 1302 Agnes married Baron Havtore Jonsson (1275–1320) of the Sudreim dynasty in Romerike. Havtore was the governor of Romerike and had eight other estates and territories throughout Norway, including Borregård and a half of Sarpefossen.
Their two sons, collectively referred to as Havtoresønnene ('Sons of Havtore'), would become central persons in Norwegian politics. Jon Havtoresson (ca. 1312–ca. 1390) and Sigurd Havtoresson (ca. 1315–ca. 1392) accessed influential positions during the reign of their cousin, King Magnus VII Ericson.
Her descendants were claimants to the Norwegian throne (see: Sudreim claim).