Princess Anne's son Peter Phillips, and his new partner, Harriet Sperling, were among the attendees at Wimbledon on Wednesday, enjoying the tournament's tenth day.
The pair were seen watching the quarter-final matches at the All England Lawn Tennis and Croquet Club, though they were seated separately from Queen Camilla, who was also present at the event.
During her visit, Her Majesty met with several dedicated staff members who play a key role in maintaining the world-renowned venue.
Among those introduced to the Queen was Will Brierley, the head groundskeeper, who had devoted over 20 years to the All England CLub, expertly maintaining the Championship Courts to the highest standards.
She also greeted Robin Murphy, the venue's lead gardener, who recently celebrated two decades of service.
The Queen's day at Wimbledon has included a meeting with tennis icon Novak Djokovic, who is preparing to face rising Italian star Flavio Cobolli in his upcoming match.
Cobolli earned his place in the next round after a commanding win over Marin Cilic.
Reflecting on the opportunity, Cobolli said: 'It will be on one of the biggest stages in the world, this is the best court in the world,' he said.
