Roos af Hjelmsäter

Roos af Hjelmsäter is a Swedish noble family of Norwegian noble and royal origin. It is among the few of Norway's medieval noble families still living.

The family was originally a part of the Norwegian nobility, and its progenitor, Lendmann Åge varg, was married with a daughter of King Harald IV Gille of Norway.

Åge varg was the paternal grandfather of Olav mokk, Sysselmann of Hedmark, who himself was the father of Lendmann Ivar at Skedjuhov († ca. 1240). The latter's son, Baron Jon Ivarsson to Sudreim, was the father of Baron Havtore Jonsson († ca. 1320), who married King Håkon V's daughter Agnes Håkonsdotter. Their sons were Jon Havtoresson to Elingård and Sigurd Havtoresson to Sudreim.

Jon Havtoresson was the father of Håkon Jonsson, who was suggested as King of Norway after the death of King Olaf IV in 1387 and who became the progenitor of the family Roos af Hjelmsäter of the Swedish nobility.

Sigurd Havtoresson married Norway's richest heiress, Ingeborg Erlingsdotter, and thereby came to possess the Giske and Bjarkøy Estate. Their daughter was Agnes Sigurdsdotter, who married the Swedish nobleman Jon Marteinsson (Stjerne) († ca. 1400) and who was the mother of Sigurd Jonsson (Stjerne) († 1453) to Sudreim, Giske, and Bjarkøy. Sigurd was Regent of Norway, and he was as a royal descendant offered the throne, but rejected these suggestions. His son Junker Hans Sigurdsson (Stjerne) († 1466) was the family's last man in Norway.

...
Wikipedia