Michael and Carole Middleton
Kate Middleton's parents Carole and Michael enjoyed another date at Wimbledon after Prince Louis' christening. Pictured: Carole and Michael sit on court to watch him Switzerland's Roger Federer play against South Africa's Kevin Anderson during their men's singles quarter-finals match on the ninth day of the 2018 Wimbledon Championships at The All England Lawn Tennis Club in Wimbledon, southwest London, on July 11, 2018. Getty Images/Oli Scarff

Kate Middleton's parents enjoyed another date at the Wimbledon after Prince Louis' christening.

Michael and Carole Middleton were once again spotted in the royal box watching the tennis tournament. The Duchess of Cambridge's mom opted to wear a flowy printed shirt dress with a pair of nude wedges. She paired the outfit with dark sunglasses. On the other hand, Michael opted for a blue shirt and blazer with khaki pants.

This is Michael and Carole's second date at Wimbledon. The couple was also seen watching the tournament last week. During the sighting, Carole wore a white crisp dress with a broderie-anglaise design. The dress was a few inches above her knees and showed off her tan legs. Carole paired it with nude and gray wedges. She accessorized with dark sunglasses and a leather handbag. On the other hand, Middleton's father opted for a dark navy suit.

Royal fans are hoping that Middleton will show up at the event with her sister-in-law Meghan Markle. According to previous reports, the Duchess of Sussex will be making several appearances at the event to cheer for her good friend, Serena Williams. However, Middleton's attendance remains unconfirmed as she's still on maternity leave.

Meanwhile, prior to Carole and Michael's second day out at Wimbledon, they have reunited with Prince William and Middleton for Prince Louis' christening on Monday. Middleton's sister, Pippa, was also present with her husband, James Matthews. Prince Harry, Markle, Camilla Parker Bowles and Prince Charles were also in attendance.

It was the first time that the Duke and Duchess of Cambridge were seen with their three children. They arrived together with Middleton carrying Prince Louis in her arms. On the other hand, Prince William held Prince George and Princess Charlotte's hands.

Carole's presence in Prince Louis' special day was expected. Aside from being the newborn's grandmother, she's been visiting the baby at home. In fact, she dropped by at Kensington Palace when Prince William and Middleton's youngest child turned 1 month old. Queen Elizabeth II also visited her great-grandson a day after Carole did.

"Carole has been invaluable to the Duchess. Kate stayed with her parents in Bucklebury last weekend and, when she returned to London, Carole came too," a source told The Sun.