Bengt Birgersson (1254 – 25 May 1291) was the youngest son of Birger Jarl. He embarked on an ecclesiastical career, becoming the Archdeacon of Linköping in 1273, the Canon of Uppsala in 1275, and the Bishop of Linköping in 1286. When open war broke out between his brothers, King Valdemar and Duke Magnus, Bengt sided with Magnus. After Magnus became King of Sweden in 1275, Bengt served as his chancellor. In 1284, he was granted the title of Duke of Finland. Early life. Bengt Birgersson was a member of the House of Bjälbo (Folkungaätten).
https://en.wikipedia.org/wiki/Bengt_Birgersson
Bengt Birgersson (1254 – 25 May 1291) was the youngest son of Birger Jarl. He embarked on an ecclesiastical career, becoming the Archdeacon of Linköping in 1273, the Canon of Uppsala in 1275, and the Bishop of Linköping in 1286. When open war broke out between his brothers, King Valdemar and Duke Magnus, Bengt sided with Magnus. After Magnus became King of Sweden in 1275, Bengt served as his chancellor. In 1284, he was granted the title of Duke of Finland. Early life. Bengt Birgersson was a member of the House of Bjälbo (Folkungaätten).
