As one ofQueen Elizabeth II’sgreat-grandchildren,Prince Louishas an exceptionally close bond to the British monarch.

For a start, their birthdays are just two days apart.

Louis was born on April 23, while Elizabeth was born on April 21.

Elizabeth II, Catherine, Duchess of Cambridge and Prince Louis of Cambridge watch a flypast from the balcony of Buckingham Palace during Trooping The Colour, the Queen’s annual birthday parade

Louis is also close to his great-grandmother thanks to his parents.

Prince Louis, Prince George, Prince William, Duke of Cambridge, Princess Charlotte, Catherine, Duchess of Cambridge, Camilla, Duchess of Cornwall, Prince Charles, Prince of Wales, Princess Anne, Princess Royal and Queen Elizabeth II during Trooping The Colour