She was according to the authorised book written about her when she was Crown Princess, her is an article translated which deals with the deathhttp://www.tv2.no/underho...i-baatulykke-3546146.html
In Tuesday's Se og Hør it is reffered to the book "Sonja - Norway's Crown Princess." Here the boating tragedy which cost Sonja's brother lives, only seven years old is discussed
7. June 1936, just over a year before Sonja herself was born, her brother, Karl Herman died when sailing, the boat he was in exploded and burned at sea. The boy was, according to the magazine thrown overboard, together with his father, Karl August.
Was not found
The accident occurred midway through the Oslo Fjord, on the way to Drobak. The cause of the accident, according to the book have been that the carburetor engine leaked petrol.
Only the father managed to save his life. The little boy was never found after the accident, and Sonja, who was born the following year, never got to meet her brother.
Dagny Haraldsen and Karl August, was devastated by the tragedy. According to the magazine, it is said in the book that the only thing that could help them through this difficult time, was having another child. A year later, Sonja was born
- The little girl looked like the dead brother, according to the book