Christian I of Denmark Scandinavian monarch under the Kalmar Union (1426-1481) (1426–1481) Parents Helvig of Schauenburg Dietrich, Count of Oldenburg Children Frederick I of Denmark Olaf of Denmark John, King of Denmark Margaret of Denmark, Queen of Scotland Canute of Denmark Siblings Gerhard VI Adelheid of Oldenburg Maurice IV, Count of Oldenburg Partners Dorothea of Brandenburg