Birger Gregersson
Birger Gregersson was Archbishop of Uppsala, Sweden, from 1366 to his death 1383.
It is known that he was vicar of Österhaninge and then priest in Uppsala. He was a supporter of King Albrekt, who appointed him chancellor.
After being elected archbishop in 1366 he worked energetically. Above all, he wrote much and is considered one of the most important Swedish writers in the Middle Ages. He wrote a biography of Saint Birgitta, and hymns to her and Saint Botvid's honor.