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.
Margravine Louise of Brandenburg-Schwedt Louise Henriette Wilhelmine of Brandenburg-Schwedt (24 September 1750 in Różanki – 21 December 1811 in Dessau), was a Margravine of Brandenburg by births and by marriage a princess, and later Duchess, of Anhalt-Dessau.