Pippa Middleton wedding: When is Kate Middleton’s sister wedding date? Who is her fiancé James Matthews and what role will Prince George and Princess Charlotte have on the big day?

Pippa Middleton and James Matthews’ wedding date is May 20, 2017 [Getty]

Kate Middleton’s sister confirmed her engagement to fiancé, James Matthews – who is the brother of Made In Chelsea star Spencer Matthews – in 2016

A statement from the couple at the time read: “Miss Pippa Middleton and Mr James Matthews are delighted to announce they became engaged on Sunday 17th July and plan to marry next year.”

But when is James, 41, and Pippa Middleton, …