Queen Elizabeth II, who took over the throne after the death of her father, King George VI, in 1952, has reigned over the nation for 70 years.
As the UK celebrates its longest-serving monarch in its history over a four-day long Platinum Jubilee weekend, the Queen has several generations of the Royal Family behind her - some part of the order of succession and others non-working members of the family.
She has four children, eight grandchildren and 12 great-grandchildren. While her son Prince Charles is the next in the order of succession for the throne, here's a look at the youngest members of the family.
