Background
Mörner was born in Lekaryd Parish in Jönköping County, Sweden and was the son of Lieutenant Colonel Count Carl Gustaf Mörner and Sofia Elisabet Steuch.
Mörner was born in Lekaryd Parish in Jönköping County, Sweden and was the son of Lieutenant Colonel Count Carl Gustaf Mörner and Sofia Elisabet Steuch.
He was the brother of Hampus Mörner, Charlotta Mörner, Gustaf Fredrik Mörner and Carl Stellan Mörner.