The Royal Family came together en masse in Windsor today to attend the traditional Easter Sunday Mattins service at St George's Chapel. The gathering, which was led by King Charles and Queen Camilla, saw several members of the Firm come together before heading back to Windsor Castle to enjoy a special lunch.

Despite there being notable absences from the Wales and Tindall families, there were also some rare appearances from the likes of Sarah, Duchess of York and James, Earl of Wessex. As well as them, Prince Andrew was pictured arriving at the service alongside his ex-wife.

While everyone looked on top form and excited to be reunited, there was one unique interaction that a leading body language expert has praised as it shows who the "family head and host" really is.

Beloved for her no-nonsense approach and wicked sense of humour, it was the Princess Royal who stole some of the spotlight, according to leading body language expert Judi James.

Speaking exclusively to The Express, Ms James said: "Anne's husband Tim had been given the job of providing social cohesion and Fergie chatted to him non-stop, laughing throughout and turning to wave to the crowds in a gesture that suggested she feels reassured in terms of her personal popularity."

With Sir Tim playing a key role, the expert adds that it was Princess Anne who took the lead. She added: "Prior to the arrival of her brother Charles, Anne appeared fully defined in terms of family head and host, waiting by the entrance to the chapel, chatting to the clergyman and greeting family members.

"Her affection for and friendship with Sophie looked obvious from the warmth of their greeting and the way Anne appeared to immediately say something to make Sophie laugh".

This latest outing comes just days before the Princess will be heading off on a major trip to Turkey alongside Vice Admiral Sir Tim Laurence, on behalf of King Charles for the first time since he suffered a mystery injury earlier this year.

Buckingham Palace announced that the Princess Royal will head to Turkey to attend commemorations of the 110th Anniversary of the Gallipoli Campaign on Thursday, April 24 and Friday, April 25.

In her role as President of the Commonwealth War Graves Commission (CWGC), Anne will also pay a visit to the grave of Lieutenant Colonel Charles Doughty-Wylie, who was posthumously awarded the Victoria Cross for Gallantry in the Gallipoli campaign.