Question: Who is the paternal grandfather of Knut Birgersson, Riksjarl Of Sweden?
Sentence (from "Birger Brosa"): Birger Brosa (Old Norse: "Birgir Brósa" where "Brósa" means "smiling"), jarl of Sweden 1174–1202, d. 9 January 1202 on Visingsö, was a son of Bengt Snivil and a member of the powerful House of Bjälbo.
Relevant evidence: Yes