Members of the Royal Family have shared sweet messages of well wishes to Meghan Markle and Prince Harry's daughter Lilibet on her first birthday on Saturday 4 June.The Duke and Duchess of Sussex's daughter Lilibet, who was recently introduced to her namesake the Queen, are celebrating their daughter's milestone birthday in the UK, after jetting from the US for the Queen's Jubilee celebrations. And as Meghan, 40, Harry, 37, celebrate Lilibet's big day, the Queen and other members of the Royal Family have shared sweet messages to the tot on social media.The Queen tweeted on her The Royal Family account: "Wishing Lilibet a very Happy 1st Birthday!" Get exclusive celebrity stories and fabulous photoshoots straight to your inbox with OK!'s daily newsletter.