Roos af Hjelmsäter family

1224), Sysselmann of Hedmark, who himself was the father of lendmann Ivar Olavsson of Skedjuhov († ca.

[3][4] [5] Jon Havtoresson married Birgitta Knutsdotter († 1395) and was the father of Håkon Jonsson (1345-1391), who through inheritance and marriage, received extensive landlord in eastern Norway (in Borgarsyssel and Romerike) as well as in western Norway (in Agder).

He became the progenitor of the Roos af Hjelmsäter family of Swedish nobility.

[6][7] Sigurd Havtoresson married Norway's richest heiress, Ingeborg Erlingsdotter, daughter of Erling Vidkunsson.

Their daughter was Agnes Sigurdsdotter, who married the Swedish nobleman Jon Marteinsson (Stjerne) († ca.

His son junker Hans Sigurdsson (Stjerne) († 1466) was the family's last man in Norway.

The family's coat of arms featured a red rose on a golden field.

Roos af Hjelsäter coat of arms
The coat of arms of Sørum in Akershus is derived from the arms of the medieval Sudreim clan