Jarls and Bishops
The House of Bjelbo produced most of the jarls in Sweden in the 11th, 12th and 13th centuries until the title was abolished in 1266. Different branches of the family were often rivals for the office of jarl. Most of the kings during that time were also from Östergötland.
Around 1100, Folke the Fat became the first known Bjelbo jarl, and probably the first jarl of all Sweden, under king Inge I of Sweden. He was married to a daughter of king Canute IV of Denmark. According to legends, he was the first of his family so elevated. Nothing is known of any of Folke's collateral relatives, though it is well-established that several of his sons' descendants were important lords.
Other notable jarls from the family were Birger Brosa, Charles the Deaf, Ulf Fase, and Birger jarl. In the early 13th century, some members of the family moved to Norway, and held the office of jarl there. Noteworthy is that regardless of the ruling royal family, Bjelbos continued to hold the position of the jarl in the kingdom.
Several members of the family were also Bishops of Linköping at least in the 13th century. Diocese covered the area of Östergötland. Bishop of Linköping was often involved in the eastern activities.
Read more about this topic: House Of Bjelbo