The Duke and Duchess of Sussex’s son Archie Harrison will be christened at a private ceremony on Saturday, a royal source confirmed.

The service will be held at the private chapel at Windsor Castle on 6 July, and is set to be a “very small gathering”, the source said, with around 25 family and friends present. 

The ceremony is due to take place exactly two months after Archie was born on 6 May 2019. 

It is understood that pictures of the ceremony will be released on Sunday through the media and Harry and Meghan’s Instagram account.

[Read More: Welcoming the royal baby: Archie Harrison]

Royal christenings are usually private affairs, with invitations extending to close family and friends, and chosen godparents.

But the Duke and Duchess of Cambridge let photographers take pictures of them and their children, family members and guests arriving before the christenings of their three children.

Both Prince George and Prince Louis were christened at the Chapel Royal in London.

[Read More: 21 photos from royal christenings throughout the years]

Princess Charlotte’s ceremony was held at the Church of St Mary Magdalene in Sandringham, in Norfolk, where the paddock outside the churchyard was opened to the public. 

The Archbishop of Canterbury, who married Harry and Meghan in May 2018, is usually called upon to perform the service.

It is not yet known who Harry and Meghan have chosen as Archie’s godparents. Royal protocol dictates Prince William will not be godfather to his nephew, just as Harry isn’t godfather to the Cambridge children.

As for Archie’s godmothers, Coral bookmakers have highest odds on Meghan’s best friend, stylist Jessica Mulroney (1/2), with celeb pals Amal Clooney (7/1). Serena Williams (8/1) and Oprah Winfrey (12/1) also in the running.