Ulf Birgersson

Ulf Birgersson (Ulpho Birgeri, † 1433) was a monk at Vadstena and later Confessor General in 1423–1426. He wrote a vita of Katarina of Vadstena (BHL 1710) around 1415. He is also the likely author of De vita domini Petri Olavi about Petrus of Skänninge, possibly penned in 1426–1427.