Karl Magnusson (died 1220) was the Bishop of Linköping during 1216–1220. . Karl Magnusson was from the Bjälbo dynasty or House of Folkung (Folkungaätten) and was a brother of Birger Magnusson (Birger Jarl), the most powerful man of Sweden in the mid-13th century. . His father was Magnus Minnessköld (1180s-1208), and his mother was likely Ingrid Ylva (1180s-1250-1255). He died at the Battle of Lihula in Estonia. See also. Eskil Magnusson. References.
https://en.wikipedia.org/wiki/Karl_Magnusson