Queen Elizabeth II is likely to meet her great-granddaughter, Lilibet Mountbatten-Windsor this weekend. The 11-month-old daughter of the Duke and Duchess is Sussex is set to fly to the UK with her parents and Archie, her three-year-old brother for the 96-year-old monarch’s Platinum Jubilee – that will mark her 70 year reign – and there is believed to be a free slot in the Queen’s diary on her first birthday. A insider told Entertainment Tonight: “The Queen is not likely to attend the Epsom Derby which falls on Lillibet’s first birthday, June 4, which will free her up to meet her great-granddau…