As someone who once attended a family wedding and watched the best man answer a phone call – mid vows – to his friend asking about the Liverpool v Manchester United score, I must say, we should be more concerned with how adults behave at weddings rather than children.

However, with Pippa Middleton and James Matthews up-coming nuptials at St. Mark's church in Engelfield, Berkshire on Saturday, it appears Pippa's sister, the Duchess of Cambridge, is slightly worried about how her two children, Prince George and Princess Charlotte, will appear on their auntie's big day.

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At the Buckingham Palace's first garden party of the season, the Duchess reportedly told visitor Mr Bates, from Coventry, she was 'really looking forward' to the wedding - at which Prince Harry's girlfriend, actress Meghan Markle will be in attendance – but said 'you never know' what her children might do, according to the Telegraph.

Mr Bates, who was invited to the party as a result of his 28-year-long service to the Queen, described his conversation with the royal – who wore a Christopher Kane outfit with matching Lock & Co hat – and revealed: '[The Duchess] said she was hopeful that they would be good but you never know at that age.'

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Prince George, three, and his two-year-old sister, Princess Charlotte will reportedly serve as pageboy and bridesmaid at the wedding, in front of a guest list that includes their parents, the Duke and Duchess of Cambridge, Prince Harry, Meghan and grandparents Carole and Michael Middleton.

With flowers to throw, guests to seat, service booklets to give you, who knows what the mischievous pair will get up to.

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The news comes days after it was rumored Pippa has had her wedding dress – rumoured to be designed by Giles Deacon – taken in five times over the last few months due to her dramatic weight loss, as result of an intense, three-month 'Bridal Membership' bootcamp at the Grace Belgravia health club in London.

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This weekend, Pippa will marry hedge fund financier James Matthews at her local Berkshire church before enjoying a wedding reception in the grounds of Pippa's family home in the village of Bucklebury, where there is already a glass structure installed ahead of her big day.

While the sight of Prince George rollerblading down the aisle and Princess Charlotte rolling in her basket of flowers might sound the best royal moment in history, we have a feeling the duo will be on their best behaviour on Pippa's wedding day.

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Katie O'Malley
Site Director

Katie O'Malley is the Site Director on ELLE UK. On a daily basis you’ll find Katie managing all digital workflow, editing site, video and newsletter content, liaising with commercial and sales teams on new partnerships and deals (eg Nike, Tiffany & Co., Cartier etc), implementing new digital strategies and compiling in-depth data traffic, SEO and ecomm reports. In addition to appearing on the radio and on TV, as well as interviewing everyone from Oprah Winfrey to Rishi Sunak PM, Katie enjoys writing about lifestyle, culture, wellness, fitness, fashion, and more.