Question: Erling Lorentzen is the widower of a princess born in which year ?

Context paragraphs:
Christine Lorentzen: Christine Gyrsting Lorentzen (born January 13, 1989), also known by her stage name Lore, is a Danish singer-songwriter and television presenter.  She is the lead vocalist and frontwoman of the rock band Cryoshell.  She rose to fame in 2006 after competing in "Scenen er din".  The same year, she co-presented the third series of "Vild med dans" with Claus Elming.

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.

Lilian Turner: Lilian Turner (21 August 1867 – 25 August 1956), born Lilian Wattnall Burwell, was the elder sister of Ethel Turner and the daughter of Bennett George and Sarah Jane Burwell.  Bennett George Burwell died when Lilian was still a young child, and her mother married a widower, Henry Turner, a year later.  Both Lilian and Ethel would later take their step-father's name for their professional writing careers.  Sarah and Henry had a daughter, Jeannie Rose (born 1873), but Henry died suddenly in 1878.  The following year, Sarah took her three daughters to Australia, where she met and married Charles Cope in Sydney.

Helgi Grétarsson: Helgi Dagbjartur Áss Grétarsson (born 18 February 1977) is an Icelandic chess grandmaster.  He won the World Junior Chess Championship in 1994 in Matinhos, Brazil.  Helgi played for the Icelandic national team in the Chess Olympiad in 1994, 1996, 1998 and 2002.  He tied for first place with Carsten Høi, Erling Mortensen, Nikolaj Borge and Lars Schandorff at the Politiken Cup 1997 tournament in Copenhagen.  In this event, Helgi won the prize for the best nordic junior player.  The following year, he competed in the FIDE World Chess Championship in Groningen.  Helgi knocked out Miguel Illescas in the first round, then in round 2 he was eliminated from the competition after losing to Artur Yusupov.

Princess Anne Thérèse of Savoy: Anne Thérèse of Savoy (1 November 1717 – 5 April 1745) was a Savoyard princess born in Paris, France.  She was the second wife of Charles de Rohan, Prince de Soubise, a military leader and friend of Louis XV.

Amaya (TV series): Amaya is a Philippine historical fiction and period drama series created and developed by Suzette Doctolero and directed by Mac Alejandre.  Dubbed as the very first "epicserye" on Philippine television, Marian Rivera takes on the title role as a tribal princess born and destined to change a culture and society dominated by men.  With Sid Lucero, Mikael Daez and Aljur Abrenica as her leading men, the story is set in the pre-colonial period of the 1500s.  The series premiered in the Philippines on May 30, 2011 replacing "I Heart You, Pare! " on GMA Network's primetime block and aired internationally on June 1, 2011 on GMA Pinoy TV.  It ended on January 13, 2012 and was replaced by "Legacy".

Lorentzen family: Lorentzen or Bie-Lorentzen is a Norwegian family of Danish origin.  Several members have been noted as shipping magnates and industrialists.  Among its members are shipowner Erik Finn Lorentzen and industrialist Erling Lorentzen, who was married to Princess Ragnhild of Norway (known as Princess Ragnhild, Mrs. Lorentzen after her marriage), the eldest daughter of King Olav V of Norway.  Several members of the family are in the line of succession to the British throne; at the time of her death, Princess Ragnhild was number 75 and her children Haakon, Ingeborg and Ragnhild Lorentzen follow directly after.

Erling Lorentzen: Erling Sven Lorentzen (born 28 January 1922) is a Norwegian shipowner and industrialist who has lived in Brazil for decades.  He founded Aracruz Celulose in 1968.  He is the widower of Princess Ragnhild.  He is a member of the Lorentzen family of shipping magnates.

Margaret, Countess of Pembroke: Margaret of England (20 July 1346 – October/December 1361) was a royal princess born in Windsor, the daughter of King Edward III of England and his consort, Philippa of Hainault.  Margaret would be the last princess born to a reigning English monarch for over a century, until the birth of Elizabeth of York in 1466.  She was also known as Margaret of Windsor.

List of Amaya (TV series) characters: Amaya is a Filipino historical fiction and period drama series created and developed by Suzette Doctolero and directed by Mac Alejandre.  Dubbed as the very first "epicserye" on Philippine television, Marian Rivera takes on the title role as a tribal princess born and destined to change a culture and society dominated by men.  With Sid Lucero, Mikael Daez and Aljur Abrenica as her leading men, the story is set in the pre-colonial period of the 1500s.

Supporting paragraphs: Erling Lorentzen Princess Ragnhild, Mrs. Lorentzen
Answer: 1930