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 Louise of Denmark (1875–1906) Princess Louise of Denmark ("Louise Caroline Josephine Sophie Thyra Olga") (17 February 1875 – 4 April 1906) was a Danish princess, the third child and oldest daughter of Frederick VIII of Denmark and his wife, Princess Louise of Sweden and Norway.