Question: When did Albert Ii, Prince Of Monaco's mother die?

Knowledge 1: Albert II, Prince of Monaco
Albert II (Albert Alexandre Louis Pierre Grimaldi; born 14 March 1958) is the reigning monarch of the Principality of Monaco and head of the princely house of Grimaldi.He is the son of Prince Rainier III and Grace, Princess of Monaco formerly Grace Kelly, the American actress.Prince Albert's sisters are Caroline, Princess of Hanover, and Princess Stéphanie.In July 2011, Prince Albert married Charlene Wittstock.Prince Albert II is one of the wealthiest royals in the world, with assets valued at more than $1 billion, which include land in Monaco and France.Although Prince Albert does not own the Prince's Palace of Monaco, he does own shares in the "Société des bains de mer de Monaco", which operates Monaco's casino and other entertainment properties in the principality. [SEP] Knowledge 2: Grace Kelly
Grace Patricia Kelly (November 12, 1929September 14, 1982) was an American film actress who, after starring in several significant films in the early- to mid-1950s, became Princess of Monaco by marrying Prince Rainier III in April 1956.After embarking on an acting career in 1950 when she was 20, Kelly appeared in New York City theatrical productions and more than 40 episodes of live drama productions broadcast during the early 1950s Golden Age of Television.From 1952 to 1956 she starred in several critically and commercially successful films, usually opposite male romantic leads 25 to 30 years older than her.In October 1953, she gained stardom from her performance in director John Ford's African-filmed adventure-romance "Mogambo", starring Clark Gable and Ava Gardner, which won her a Golden Globe Award and an Academy Award nomination for Best Supporting Actress.In 1954 she won the Academy Award for Best Actress for her deglamorized performance in the drama "The Country Girl" with Bing Crosby.Other noteworthy films in which she starred include the western "High Noon" (1952), with Gary Cooper; the romance-comedy musical "High Society" (1956), with Bing Crosby and Frank Sinatra; and three Alfred Hitchcock suspense thrillers in rapid succession: "Dial M for Murder" (1954), with Ray Milland; "Rear Window" (1954), with James Stewart; and "To Catch a Thief" (1955), with Cary Grant.Kelly retired from acting at the age of 26 to marry Rainier, and began her duties as Princess of Monaco.It is well known that Hitchcock was hoping she would appear in more of his films which required an "icy blonde" lead actress, but he was unable to coax her out of retirement.Kelly and Rainier had three children:Princess Caroline, Prince Albert, and Princess Stéphanie.Kelly retained her link to America by her dual U.S. and Monégasque citizenship.Princess Grace died at Monaco Hospital on September 14, 1982, succumbing to injuries sustained in a traffic collision the previous day.At the time of her death she was 52 years old.She is listed 13th among the American Film Institute's 25 Greatest Female Stars of Classical Hollywood Cinema.
Knowledge 1: Albert II, Prince of Monaco
Albert II (Albert Alexandre Louis Pierre Grimaldi; born 14 March 1958) is the reigning monarch of the Principality of Monaco and head of the princely house of Grimaldi.He is the son of Prince Rainier III and Grace, Princess of Monaco formerly Grace Kelly, the American actress.Prince Albert's sisters are Caroline, Princess of Hanover, and Princess Stéphanie.In July 2011, Prince Albert married Charlene Wittstock.Prince Albert II is one of the wealthiest royals in the world, with assets valued at more than $1 billion, which include land in Monaco and France.Although Prince Albert does not own the Prince's Palace of Monaco, he does own shares in the "Société des bains de mer de Monaco", which operates Monaco's casino and other entertainment properties in the principality. [SEP] Knowledge 2: Etan Boritzer
Etan Boritzer( born 1950) is an American writer of children ’s literature who is best known for his book" What is God?" first published in 1989.His best selling" What is?" illustrated children's book series on character education and difficult subjects for children is a popular teaching guide for parents, teachers and child- life professionals.Boritzer gained national critical acclaim after" What is God?" was published in 1989 although the book has caused controversy from religious fundamentalists for its universalist views.The other current books in the" What is?" series includeWhat is Love?,What is Death?,What is Beautiful?,What is Funny?,What is Right?,What is Peace?,What is Money?,What is Dreaming?,What is a Friend?,What is True?,What is a Family?,What is a Feeling?"The series is now also translated into 15 languages.Boritzer was first published in 1963 at the age of 13 when he wrote an essay in his English class at Wade Junior High School in the Bronx, New York on the assassination of John F. Kennedy.His essay was included in a special anthology by New York City public school children compiled and published by the New York City Department of Education.Boritzer now lives in Venice, California and maintains his publishing office there also.He has helped numerous other authors to get published through" How to Get Your Book Published!" programs.Boritzer is also a yoga teacher who teaches regular classes locally and guest- teaches nationally.He is also recognized nationally as an erudite speaker on" The Teachings of the Buddha."
Knowledge 1: Albert II, Prince of Monaco
Albert II (Albert Alexandre Louis Pierre Grimaldi; born 14 March 1958) is the reigning monarch of the Principality of Monaco and head of the princely house of Grimaldi.He is the son of Prince Rainier III and Grace, Princess of Monaco formerly Grace Kelly, the American actress.Prince Albert's sisters are Caroline, Princess of Hanover, and Princess Stéphanie.In July 2011, Prince Albert married Charlene Wittstock.Prince Albert II is one of the wealthiest royals in the world, with assets valued at more than $1 billion, which include land in Monaco and France.Although Prince Albert does not own the Prince's Palace of Monaco, he does own shares in the "Société des bains de mer de Monaco", which operates Monaco's casino and other entertainment properties in the principality. [SEP] Knowledge 2: Harry Wainwright (footballer)
Harry Wainwright( born 1899; date of death unknown) was an English footballer.

Answer: September 14, 1982