Queen Elizabeth II was born in 1926 in London. She became queen in 1952 upon the death of her father, King George VI. She has reigned for over 57 years, making her the longest-reigning British monarch in history. The Queen carries out various governmental and ceremonial duties as head of state, and resides at several royal residences including Buckingham Palace, Windsor Castle, Balmoral Castle, and Sandringham House.