Background
John was born in Haderslev as the fourth child (third son) of King Christian III of Denmark and his wife Dorothea of Saxe-Lauenburg.
John was born in Haderslev as the fourth child (third son) of King Christian III of Denmark and his wife Dorothea of Saxe-Lauenburg.
There were plans for him to marry the dowager queen in 1588 or 1589, repudiating his second, young wife. John died in Glücksburg.