This is Kate’s big worry about Pippa Middleton’s wedding

And it’s not what we’d expect

Pippa Middleton’s nuptials are fast approaching, with the 33-year old set to wed multi-millionaire hedge fund manager, James Matthews, later this month.

The wedding is taking place at St Marks Church, Englefield, on Saturday, with the reception expected to be held in the Middleton family garden.

Dubbed the wedding of the year, there is plenty for the bride to be worried about in its run up – everything from avoiding rain on the day and stopping unexpected guests from showing up to the ceremony, to ensuring that her dress fits perfectly (Pippa Middleton's wedding dress has reportedly been tailored five times already).

Kate Middleton, however, has her own worries for the big day, with her attention focused on the behaviour of Prince George and Princess Charlotte.

As Pippa's page boy and bridesmaid, the two young royals have got a lot of responsibility on their tiny shoulders, something that their mother is hoping they take seriously.

The Duchess of Cambridge attended the Queen’s annual garden party on Tuesday afternoon, and confided in a guest that she was already slightly nervous about her children’s behaviour at the event.

One guest, Andrew Bates, chatted to Kate about the impending nuptials. ‘She said that they were all really looking forward to her sister’s wedding at the weekend but she was a bit worried about how her children might behave’ he explained. ‘She said she was hopeful that they would be good but you never know at that age.’

We’re sure Kate has nothing to worry about!