Following her University of St Andrews graduation last month, the Duke and Duchess of Edinburgh's daughter, 22, was back behind the reins over the weekend for her first carriage driving competition of the season. The young royal, who takes after her late grandfather, Prince Philip, in her love of the sport, competed in the Glebe Estate Carriage Driving Trials.
While Lady Louise showed off her skills in the Dressage, Cones and Marathon disciplines, her rarely-seen boyfriend Felix da Silva-Clamp, whom she met during her university studies, proudly watched from the sidelines.
See all the best photos of Lady Louise in her element and her supportive boyfriend quietly cheering her on.
Felix was seen supporting his partner for her first carriage driving competition of the season, keeping a low profile appearance in a cap and sunglasses.
Speaking of the royal's hard work, Sarah remarked: "She's earned it. She generally has that touch and that feeling and take away all the [titles]. I think she's earned her spot, and she'd be mortified if anybody turned around and said she's got it because she's been given it."
The royal showed off her sporty style in a cap, white shirt and a pair of colourful shorts.
Who is Lady Louise's boyfriend?
Felix has cheered on Lady Louise at two recent major milestones this year. He supported his partner last month when she received her Duke of Edinburgh's Gold Award.
Lady Louise received her award from none other than her father, Prince Edward, who is the Duke of Edinburgh and is patron of the award, set up by Prince Philip in 1956. The young royal was also joined for the momentous occasion at Palace of Holyroodhouse in Edinburgh by her mother, Duchess Sophie.
Felix, who is also a student at the University of St Andrews, was also present at Lady Louise's university graduation ceremony in July.