LOUIS' TOP SECRET CORONATION TRAINING

Keeping the youngest Cambridge from stealing the show is going to be quite a challenge!

After weeks of back and forth, it seems the Prince and Princess of Wales have allowed all three of their children to attend their grandpa’s coronation – even “royal rascal” Prince Louis!

William and Kate are said to be “a little nervous” about their rambunctious youngest, who will be five by King Charles III’s 6 May ceremony, after he stole the show at the Queen’s Platinum Jubilee concert last year with his raspberry-blowing antics.

“The only person who could calm him down that day was Charles – and he’ll be too busy for baby-whispering duties,” says a palace insider.

“Kate and Wills have been working with him on using his ‘inside voice’ for the ceremony, and teaching him to do the alphabet in his head when he’s bored. Kate’s little helper Princess Charlotte is going to be armed with discreet snacks like raisins and drink pouches.”