Prince William and Kate Middleton celebrated Father's Day by sharing an unseen photo of their children

• The Duke and Duchess of Cambridge marked Father's Day by sharing an unseen family photo.
• The image shows William holding Louis while George and Charlotte hug him.
• Other images in the Instagram post honored Prince Philip, Prince Charles, and Michael Middleton.

The Duke and Duchess of Cambridge shared a previously unseen photograph of Prince William with their three children to celebrate Father's Day on Sunday.

A short video shared on their official Instagram page included a photograph of William in military uniform while holding Louis.

Prince George and Charlotte can be seen hugging their father in the image, which was likely taken at Trooping the Colour in 2019, the last time the full event was held due to the pandemic.

A post shared by Duke and Duchess of Cambridge (@dukeandduchessofcambridge)

The caption reads: "Wishing fathers everywhere a happy Father's Day."

Other images shared in the Father's Day tribute included a photograph of Prince William and Prince Harry as children with their father Prince Charles at the Balmoral estate in 1993, and a photograph of Michael Middleton walking his daughter Kate down the aisle at the royal wedding in 2011.

A final photo included a nod to the late Prince Philip, who can be seen in a photograph alongside the Queen and all their grandchildren in 2018.

Alongside William and Middleton's children in the photo are Peter Phillip's daughters Savannah and Isla, Zara and Mike Tindall's children Lena and Mia.

The photo remained unseen until April 2021, when it was shared by Buckingham Palace as a tribute to Philip after his death. This year marks the first Father's Day that the royal family has observed without Philip.

The Royal Family's official Twitter account also shared a photograph of three generations of royal fathers on Sunday, taken at Balmoral in 1951. The black and white image shows the Queen with her father King George VI, Prince Philip, and Charles as a toddler.

Meanwhile, Charles and Camilla, Duchess of Cornwall, also shared a selection of images celebrating their late fathers. A tweet posted by Clarence House on Sunday said: "To all Papas everywhere, and to those who may be missing their Dads today, we are thinking of you and wishing you a special #FathersDay."

The tweet was accompanied by two photographs of Camilla with her father Bruce Shand, who died in 2006, a photo of Charles as a toddler with Philip, and a photo of Charles with William and Harry taken at Cirencester Park Polo Club in 2004.