Haakon was the son of Erling Lorentzen and Ragnhild Alexandra. The date and place of his birth have not been found.
| | | |||||||
| | ||||||||
| | | |||||||
| | ||||||||
|
Ragnhild Alexandra |
Olav V |
Charles VII Haakon |
||||||
|
Maude Charlotte Mary von Sachsen-Coburg und Gotha |
+ | |||||||
|
Martha av Sverige |
| |||||||
| |