Shinner, who has worked with the family for several years, captured the candid moment in their garden in Norfolk earlier this year.
The photo, which shows William playfully wrestling in the grass with Prince George, 12, and Prince Louis, seven, as daughter Princess Charlotte, 10, laughed, was released by Kensington Palace to celebrate Father’s Day. The children’s social media post at the time read, “Happy Father’s Day, Papa (before and after!) We love you!”