Prince George and Princess Charlotte will be page boy and bridesmaid at the wedding of Pippa Middleton, Kensington Palace has said.

The Duchess of Cambridge’s sister is to wed her financier boyfriend James Matthews in front of close family and friends at St Mark’s Church, Englefield, Berkshire, on the morning of Saturday May 20.

Pippa Middleton and James Matthews
Pippa Middleton is getting married to James Matthews (Anthony Devlin/PA)

Kate will be accompanied by the Duke of Cambridge and Prince Harry at what is set to be one of the most talked about society weddings of recent times.

Royal watchers were expecting the young royals to play an important part at the wedding, with speculation Kate would be her sister’s matron of honour – but it seems the Duchess will not be taking on that role.

The Duke and Duchess of Cambridge, Prince George and Princess Charlotte
George and Charlotte will be page boy and birdesmaid at the wedding (Dominic Lipinski/PA)

Pippa leapt into the public consciousness in 2011 when she was Kate’s bridesmaid in a figure-hugging Alexander McQueen dress at the royal wedding.

Hedge fund boss Mr Matthews got down on bended knee during a trip to the Lake District in July 2016 to propose to Pippa.

The couple had been dating for less than a year, but had moved in together and a thrilled Pippa was said to have been totally surprised by the proposal.

Pippa Middleton and James Matthews
(Anthony Devlin/PA)

Resident priest Rev Nick Wynne-Jones will officiate at the wedding ceremony, a spokeswoman at St Mark’s Church said.

The church dates back to the 12th century and was extensively restored by Sir George Gilbert Scott in 1857.

It will not be the first time the Middletons and the Cambridges have joined together at St Mark’s.

St Mark's church in Englefield, Berkshire
St Mark’s church in Englefield, Berkshire (Steve Parsons/PA)

William and Kate – along with George and Charlotte – attended a Christmas Day service accompanied by Kate’s mother Carole, father Michael, brother James, and Pippa and Mr Matthews.

The £6 million Middleton family home in nearby Bucklebury looks set to host the wedding reception.

The palace said it had no further details on guests and was unable to confirm whether Harry would have a plus one.

Meghan Markle and Prince Harry
Meghan Markle and Prince Harry (PA)

He has been dating Meghan Markle since last summer but their romance only went public in October when his communications secretary, Jason Knauf, issued a statement attacking the media over a “wave of abuse and harassment” towards her.

It is understood that the actress stayed with Harry at his home in the Kensington Palace grounds when she visited the UK in November.

In December, reports said they had been to the theatre and enjoyed a festive date watching The Curious Incident Of The Dog In The Night-Time.