The guest list for King Charles’ coronation may be exclusive — but so is the one for his grandson’s birthday on the same day.<br /><br />Meghan Markle is planning an “intimate” birthday bash for Prince Archie’s 4th birthday on May 6.<br /><br />Alongside her and Prince Harry’s flock of rescue chickens and three dogs, her mom Doria Ragland, Archie’s school chums, and some mommy friends, there may be a few recognizable faces at the Duke and Duchess of Sussex’s Montecito, California, estate — after all, they “do have celebrities in their life,” one source familiar with the family told Page Six.<br /><br />Nearly 6,000 miles away, Archie’s dad, Prince Harry, will attempt to race home hours after attending his father King Charles’ coronation at Westminster Abbey in London.<br /><br />Page Six is told that Harry will be flying commercial, not private, and may even jump on a flight back to California following the 11 a.m. ceremony — meaning he could arrive home in the early evening, thanks to the eight-hour time difference