While Kate dutifully listened to her mother-in-law, we’re betting she felt just as naughty as one of her three children, Prince George, Princess Charlotte and Prince Louis!
However, Kate and Queen Maxima soon forgot the incident, as they were joined by Sophie, Countess of Wessex and Queen Letizia of Spain to support their husbands in the parade.
King Felipe VI of Spain and King Willem-Alexander of the Netherlands were officially invested Knights of the Garter by her Majesty, the Queen, whilst Prince Charles and Prince William also took part in the ceremony – which was founded by Edward III in 1348 as a way of acknowledging contributions to public service.
And if Kate was feeling a bit silly for being told off, she didn’t worry as she’s in good company.
Last week footage emerged of Prince Harry appearing to tell off Meghan Markle for not paying attention at Trooping the Colour!