Erling Lorentzen is the widower of a princess born in which year ?
Princess Ragnhild, Mrs. Lorentzen Princess Ragnhild, Mrs. Lorentzen (Ragnhild Alexandra; 9 June 1930 – 16 September 2012) was the eldest child of King Olav V of Norway and Princess Märtha of Sweden. She was the older sister of King Harald V and Princess Astrid.
Princess Marianne of the Netherlands Princess Marianne of the Netherlands, Princess of Orange-Nassau ("Wilhelmina Frederika Louise Charlotte Marianne"; 9 May 1810 – 29 May 1883), was a member of the House of Orange-Nassau.