Image copyright Getty Images Image caption Princess Charlotte comes to the role with experience 
 
 Three-year-old Princess Charlotte will be one of six young bridesmaids at the wedding of Prince Harry and Meghan Markle, Kensington Palace has said. 
 
 Her elder brother, Prince George, aged four, will be a pageboy alongside three other young boys. 
 
 So far, the details of the bridesmaids' dresses and the pageboys' uniforms remain under wraps. 
 
 Ms Markle, 36, will not have a maid of honour as she wanted to avoid choosing just one of her closest friends. 
 
 As well as his niece and nephew, Prince Harry has picked three godchildren - three-year-old Florence van Cutsem, two year-old Zalie Warren and Jasper Dyer, six - to have starring roles on his big day. 
 
 Jasper is the son of Prince Harry's close friend Mark Dyer, a former royal equerry to Prince Charles, who supported Harry after the death of his mother, Princess Diana. 
 
 The pair travelled together on Harry's gap year and Mr Dyer inspired the prince's charity work in Lesotho, Africa. 
 
 Ms Markle's goddaughters, Remi Litt, six, and her elder sister, Rylan, seven, will also be joining the procession of bridesmaids. 
 
 And the three children of one of her best friends, Jessica Mulroney - Ivy, four, and seven-year-old twins Brian and John - will complete the picture. 
 
 Jessica, a stylist, is married to Ben Mulroney, a Canadian TV host and son of former Canadian prime minister, Brian Mulroney. 
 
 She was photographed arriving at Heathrow Airport with her family on Tuesday night. 
 
 Image copyright PA Image caption Prince George was pageboy at his aunt's wedding 
 
 Image copyright AFP Image caption Prince George, second from right, concentrates on his duties 
 
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 Prince George, the son of the Duke and Duchess of Cambridge, will have experience to lean on - he was pageboy at his aunt Pippa Middleton's wedding to James Matthews last May. 
 
 His sister, Charlotte, a bridesmaid at her aunt's wedding, recently showed she was undaunted by the limelight when she visited her little brother, Prince Louis, at hospital after his birth. 
 
 With the world's cameras trained on her, she seemed to enjoy the attention, waving sweetly and smiling at the bank of photographers. 
 
 Meanwhile, a petition organised by campaign group Republic has been handed to MPs. 
 
 Signed by 32,000 people, the petition calls on MPs to make the Royal Family pay for the security and policing surrounding Saturday's wedding and for the government to publish a report of all costs to taxpayers. 
 
 Media playback is unsupported on your device Media caption "The royals should be paying for this wedding" - Republic 
 
 Republic chief executive Graham Smith said: "There is nothing inevitable about the public spending on a royal wedding. If the royals don't want to pay a big security bill they could have had a private wedding in Sandringham or Balmoral." 
 
 Media playback is unsupported on your device Media caption George and Charlotte visit royal baby 
 
 Image copyright EPA Image caption Prince Harry and Ms Markle will be hoping for good behaviour from their bridesmaids and pageboys - all seven or under. 
 
 Image copyright Getty Images Image caption At his brother Prince William's wedding in 2011, the young bridesmaids and pageboys patiently posed in the Throne Room at Buckingham Palace 
 
 Image copyright Getty Images Image caption Prince Harry was on hand to accompany the youngest ones in a carriage to Buckingham Palace
– Prince George and Princess Charlotte will have prominent roles in Saturday's royal wedding. Kensington Palace said Wednesday that 4-year-old George will be a page boy and 3-year-old Charlotte will be a bridesmaid at the wedding of Prince Harry and Meghan Markle, per the AP. The third child of Prince William and his wife Kate, Prince Louis, was born last month and won't be attending. The palace says there will be six bridesmaids, ranging from 2 to 7 years old, and four page boys, ranging from 4 to 7. Per the BBC, the youngest members of the bridal party will also include several of the couple's godchildren, as well as the three kids of one of Markle's best friends. There's no word on what the children will be wearing for the big day. William will be Harry's best man, while Markle has chosen not to have a maid of honor for the ceremony in St. George's Chapel at Windsor Castle, reportedly so she didn't have to choose from among her good friends.