 Hagen died at her home, Fredheim at Tangen, in 1989.She was buried in the cemetery at Tangen Church ("Tangen kirke") in Hedmark, alongside her sister, Hilda Johanne Hagen (1898-1972).Her youngest sister, Ragna Charlotte Joselin Hagen (1902–1960), and her husband, composer Eivind Groven (1901–77), were buried nearby.