Peter Phillips wears navy gilet with Captain Mark Phillips outside Gatcombe Park

Captain Mark Phillips and his son Peter Phillips posed together on the grounds of Gatcombe Park near Stroud, Gloucestershire.

Princess Anne’s home, where she has lived since 1976, will host the “Magic Millions” Festival of British Eventing with five Championship titles up for winning between August 4 and 6.

Captain Mark Phillips’s daughter Zara Tindall, who won a silver medal for equestrianism in 2012, has two horses entered under “Classical Euro Star” in the intermediate class and “Class Affair” in the open category.

For the photoshoot, Peter, 45, wore jeans, a white long-sleeved shirt and a navy gilet coat on top with a zip running down the front.

His gilet appeared to be the Mark Todd unisex quilted gilet that retails for £63.99.

Its description says: “The Mark Todd Unisex Quilted Gilet is a practical, lightweight and breathable gilet with warm 100g soft fill.

“It features a two-way zip, zip pockets and subtly Mark Todd branding.”

The son of Princess Anne paired this with blue jeans, a white checkered shirt and brown boots that looked remarkably similar to Timerland’s.

Captain Mark Phillips, 74, who was married to Princess Anne between 1973 and 1992, similarly wore blue jeans and brown boots.

He also wore a sleeveless navy jumper over a pale shirt which matched Peter’s gilet perfectly.

The father of four accessorised with a shiny gold Rolex watch and a Magic Millions baseball cap, which sell for $19.95 on the Magic Millions Store, or £15.46 in British Sterling.

In addition, Mark wore a glistening gold ring on his fifth finger on his left hand – which is often an indication of someone’s personal status and achievement.

Princess Anne and her former husband continue to live on the Gatcombe Park estate, as do their two adult children Zara and Peter with their respective families.