Havtore Jonsson
Havtore Jonsson (c. 1275–1320) was a Norwegian baron of the Sudrheim family on Romerike. In 1302 he was betrothed to Agnes Håkonsdatter, the illegitimate daughter of King Håkon V, whom he later married. A landowner with estates including Borregård, he served as sysselmann of Romerike.
In 1319, he joined other nobles at the dying Håkon's bedside in swearing to uphold the king's provisions for succession and government. His sons Jon and Sigurd later served Magnus Eriksson.