The Duke and Duchess of Cambridge's youngest child Princess Charlotte will turn two tomorrow (May 2), but celebrations will reportedly be kept low-key.

This will be the Cambridge family's last summer at their residence in Amner Hall before they swap Norfolk for London to take up permanent roles as full-time royals. They are expected to host a small gathering in the toddler's honour.

The Duke and Duchess – William and Catherine (Kate) – along with Prince Harry all have the day off official Royal engagements, although the Duke of Edinburgh, Princess Charlotte's great-grandfather, will be hosting a lunch reception at Buckingham Palace.

Meanwhile, the Prince of Wales, who also has no official engagements in his diary on Tuesday, is understood to be based predominantly in Scotland this week.

Princess Charlotte has only been photographed a handful of times officially. However, like her older brother Prince George, three, Kensington Palace have released a new image taken by the Duchess of Cambridge to mark her second birthday.

The shot was posted on the official Kensington Palace Twitter account and shows the young royal wearing a yellow cardigan and holding what appears to be a brightly wrapped present.

They wrote alongside it: "The Duke and Duchess are delighted to share a new photograph of Princess Charlotte to mark her second birthday tomorrow," followed by red balloon emoji,

A follow-up tweet added: "TRH would like to thank everyone for the lovely messages they have received & hope that everyone enjoys this photograph as much as they do."

Later this month will see both Prince George and Princess Charlotte take starring roles in their mother's sister's wedding.

Pippa Middleton will marry James Matthews on May 20 at St Mark's Church in Englefield, Berkshire.

Prince George will act a page boy while Princess Charlotte will be a flower girl.

Despite Pippa taking on the role of maid of honour at her sister's wedding to Prince William back in 2011, Kate is not expected to return the favour or be a bridesmaid.

In addition to the Duke and Duchess of Cambridge, the nuptials are expected to attract a number of high-profile guests including Prince Harry, Pippa and Kate's brother James Middleton along with girlfriend Donna Air, and Ben Fogle and Roger Federer.

The Groom's brother Spencer Matthew – who previously starred in E4 TV show Made In Chelsea – will serve as best man.

Royal Tour of Canada
Princess Charlotte is expected to have a low-key party with close family in Norfolk to mark her big day Chris Jackson/ Getty Images

Two noticeable absences from the ceremony will be Prince Harry's girlfriend, Suits actress Meghan Markle, and Spencer's other half, model Vogue Williams.

Meghan is believed to have been invited to the reception, however.