Antony Charles Robert Armstrong-Jones, 1st Earl of Snowdon, GCVO FRSA RDI (7 March 1930 – 13 January 2017), was a British photographer and filmmaker. He is best known for his portraits of world notables, many of them published in Vogue, Vanity Fair, and other major venues; more than 100 of his photographs are in the permanent collections of the National Portrait Gallery. From 1960 to 1978 he was married to Princess Margaret, the sister of Queen Elizabeth II.