Princess Margaret Rose Windsor (1930–2002), Countess of Snowdon and the younger sister of Queen Elizabeth II, was arguably one of the most popular royals in modern history. Known for her rebellious nature and determined personality, she made headlines around the world for her 'party-girl' lifestyle and her relationship with her father's equerry Group Captain Peter Townsend – a romance that featured in the blockbuster Netflix series The Crown. But how much do you know about the royal?
