Daniel Chatto
Daniel St George Chatto( born 22 April 1957), previously Daniel Chatto St George Sproule, is a British artist and former actor.
He is the husband of Lady Sarah Chatto, the daughter of Princess Margaret, Countess of Snowdon, and niece of Queen Elizabeth II.
Lady Margarita Armstrong-Jones
Lady Margarita Elizabeth Rose Alleyne Armstrong- Jones( born 14 May 2002) is the only daughter and youngest child of the Earl and Countess of Snowdon.
She is the granddaughter of Princess Margaret and the 1st Earl of Snowdon.
She is currently 23rd in the line of succession to the British throne, after her father and brother.
Serena Armstrong-Jones, Countess of Snowdon
Serena Alleyne Armstrong- Jones, Countess of Snowdon(" née" Stanhope; born 1 March 1970) is an Anglo- Irish aristocrat and the daughter- in- law of Princess Margaret, Countess of Snowdon, and a niece- by- marriage of Queen Elizabeth II and Prince Philip, Duke of Edinburgh.
Lady Sarah Chatto
Lady Sarah Frances Elizabeth Chatto( née Armstrong- Jones; born 1 May 1964) is a member of the extended British royal family.
She is the only daughter of Princess Margaret, Countess of Snowdon, and Antony Armstrong- Jones, 1st Earl of Snowdon, and a niece of Queen Elizabeth II.
At the time of her birth she was seventh in line of succession to the British throne and is currently 24th.
Antony Armstrong-Jones, 1st Earl of Snowdon
Antony Charles Robert Armstrong- Jones, 1st Earl of Snowdon( 7 March 193013 January 2017), commonly known as Lord Snowdon, was a British photographer and filmmaker.
He was the husband of Princess Margaret and brother- in- law of Queen Elizabeth II.
George VI
George VI (Albert Frederick Arthur George; 14 December 1895 – 6 February 1952) was King of the United Kingdom and the Dominions of the British Commonwealth from 11 December 1936 until his death.
He became known as a symbol of British determination to win the Second World War against Germany.
Known as "Bertie" among his family and close friends, George VI was born in the reign of his great-grandmother Queen Victoria and was named after his great-grandfather Albert, Prince Consort.
As the second son of King George V, he was not expected to inherit the throne and spent his early life in the shadow of his elder brother, Edward.
He attended naval college as a teenager and served in the Royal Navy and Royal Air Force during the First World War.
In 1920, he was made Duke of York.
He married Lady Elizabeth Bowes-Lyon in 1923, and they had two daughters, Elizabeth and Margaret.
In the mid-1920s, he had speech therapy for a stammer, which he never fully overcame.
George's elder brother ascended the throne as Edward VIII upon the death of their father in 1936.
However, Edward was forced to choose between the crown and marriage to divorced American socialite Wallis Simpson.
With the abdication of Edward to marry Simpson, George ascended the throne as the third monarch of the House of Windsor.
From 1939, the British Empire and Commonwealth – except Ireland – declared war on Nazi Germany.
War with the Kingdom of Italy and the Empire of Japan followed in 1940 and 1941, respectively.
The king and his family remained in London during the Blitz, and his popularity soared as he shared the hardships of the common people.
Britain and its allies were victorious in 1945, but the British Empire declined.
Ireland had largely broken away, followed by independence of India and Pakistan in 1947.
George relinquished the title of "Emperor of India" in June 1948 and instead adopted the new title of Head of the Commonwealth.
He was beset by smoking-related health problems in the later years of his reign and died of coronary thrombosis in 1952.
He was succeeded by his daughter, Elizabeth II.
Princess Margaret, Countess of Snowdon
Princess Margaret, Countess of Snowdon, (Margaret Rose Windsor; 21 August 1930 – 9 February 2002) was the younger daughter of King George VI and Queen Elizabeth and the only sibling of Queen Elizabeth II.
Margaret spent much of her childhood with her parents and sister.
Her life changed dramatically in 1936, when her paternal uncle King Edward VIII abdicated to marry divorcée Wallis Simpson.
Margaret's father became king, and her sister became heir presumptive, with Margaret second in line to the throne.
During the Second World War, the two sisters stayed at Windsor Castle despite suggestions to evacuate them to Canada.
During the war years, Margaret was considered too young to perform any official duties and instead continued her education.
After the war, Margaret fell in love with Group Captain Peter Townsend.
In 1952, her father died, her sister became queen, and Townsend divorced his wife, Rosemary.
He proposed to Margaret early the following year.
Many in the government believed that he would be an unsuitable husband for the Queen's 22-year-old sister, and the Church of England refused to countenance marriage to a divorced man.
Margaret eventually abandoned her plans with Townsend and married photographer Antony Armstrong-Jones in 1960; the Queen made him Earl of Snowdon.
The couple had a son David and a daughter Sarah.
Margaret was often viewed as a controversial member of the British royal family.
Her divorce in 1978 received much negative publicity, and she was romantically associated with several men.
Her health gradually deteriorated in the final two decades of her life.
She was a heavy smoker for most of her adult life and had a lung operation in 1985, a bout of pneumonia in 1993, and at least three strokes between 1998 and 2001.
She died at King Edward VII's Hospital in London after suffering a final stroke on 9 February 2002.
Charles Armstrong-Jones, Viscount Linley
Charles Patrick Inigo Armstrong- Jones, Viscount Linley( born 1 July 1999) is the son of David Armstrong- Jones, 2nd Earl of Snowdon, and Serena Armstrong- Jones, Countess of Snowdon.
He is a great- grandson of King George VI through the king's younger daughter, Princess Margaret, Countess of Snowdon.
He is heir apparent to the Earldom of Snowdon and 22nd in the line of succession to the British throne, after his father.
Roddy Llewellyn
Sir Roderic Victor Llewellyn, 5th Baronet( born 9 October 1947), is a British baronet, landscape gardener, journalist, author, and television presenter.
He also had a eight- year relationship with Princess Margaret, Countess of Snowdon, the younger sister of Queen Elizabeth II.
Anne Tennant, Baroness Glenconner
Anne Veronica Tennant, Baroness Glenconner( née Coke; born 16 July 1932) is a British peeress and socialite.
The daughter of the 5th Earl of Leicester, Lady Glenconner served as a maid of honour at the Coronation of Elizabeth II in 1953, and was Extra Lady- in- waiting to Queen Elizabeth II's sister, Princess Margaret, Countess of Snowdon, from 1971 until the Princess died in 2002.

Question: What is the date of death of Princess Margaret, Countess Of Snowdon's father?
Answer: 6 February 1952