Happy Birthday to Lady Sarah Chatto, who turns 53 today. The only daughter of Princess Margaret and Anthony Armstrong Jones, Lord Snowdon, she is the younger sister of David, Lord Snowdon. The only niece of Queen Elizabeth II, Lady Sarah is a favourite of the Royal family, praised for her loyalty and discretion. In 1994, she married Daniel Chatto, whom she met while working on the film Heat and Dust in India. The couple have two sons, and pursue careers as painters in London. Lady Sarah does not undertake royal duties, but is an elegant presence at family events, including the Queen’s 90th Birthday Thanksgiving Service and the Christmas Lunch at Buckingham Palace last year. Lady Sarah was seen at her father’s memorial service last month.