Kate Middleton, Prince William at Pippa party that caused uproar

A royally fun time was had by all.

Kate Middleton and Prince William attended a birthday bash thrown by Pippa Middleton for her husband, James Matthews’ 50th birthday.

The Daily Mail reported on Saturday that the British socialite, 42, had neighbors stewing over the noise that was happening in honor of the hedge fund manager.

Along with the Prince and Princess of Wales, the party was also said to have Spice Girl Geri Halliwell-Horner, her husband Christian Horner, Matthews’ brother Spencer Matthews and his wife Vogue Williams on the guest list.

According to the outlet, the theme was “racy,” connecting to Matthew’s love of motorsports.

Middleton’s other half is a former British racing driver and a member of the board of the British F1 team, Atlassian Williams Racing.

The party allegedly happened last Saturday night at the couple’s estate in Berkshire.

The noise reportedly kicked off with a World War II-era fighter plane, called a Spitfire, flying over their house.

Many locals were said to be afraid the sound would scare their pets.

“I thought this might happen when Pippa moved in. People with money,” one person told Daily Mail.

Another noted that the music was going until 1:30 a.m. 

Middleton and Matthew first purchased their private estate in West Berkshire in 2022.

Their home is also near William and Kate’s Adelaide Cottage in Windsor.

The siblings have remained close over the years, with Middleton attending Kate’s “Together at Christmas” carol service at Westminster Abbey every year since the tradition started in 2021.

Also always in the crowd is their parents, Carole Middleton, and Michael Middleton, and brother James Middleton.

The Post reached out to Middleton’s rep and the palace for comment.

For the most part, Middleton and Matthews, who married in 2017, have lived a life outside of the spotlight.

After their 2016 engagement, a source shared with People that they had a “deep desire” to step away from the public eye and were looking forward to “having children and leading a quiet life.”

The pair shares kids Arthur, 6, and daughters Grace, 4, and Rose, 3.

Princess Kate, 43, meanwhile, has stepped back into the spotlight after revealing that she was being treated for cancer in March 2024.

While undergoing chemotherapy, the royal kept a low profile.

In September 2024, Kate announced she was cancer-free.

“As the summer comes to an end, I cannot tell you what a relief it is to have finally completed my chemotherapy treatment,” the princess penned at the time. “The last nine months have been incredibly tough for us as a family. Life as you know it can change in an instant and we have had to find a way to navigate the stormy waters and road unknown.”

Then, in January, the philanthropist got candid about being in remission, calling it “a relief.”

“As anyone who has experienced a cancer diagnosis will know, it takes time to adjust to a new normal,” she added. “I am however looking forward to a fulfilling year ahead. There is much to look forward to. Thank you to everyone for your continued support.”

Over the summer, Princess Catherine, who shares kids Prince George, 12, Princess Charlotte, 9, and Prince Louis, 7, with William, 43, opened up about her lifestyle post-cancer.

While visiting Colchester Hospital in Essex, England, on July 2, she expressed what it was like to get back into her daily routine.

“You put on a sort of brave face, stoicism through treatment. Treatment’s done, then it’s like, ‘I can crack on, get back to normal,’ but actually, the phase afterwards is really, really difficult,” Kate detailed.

“You’re not necessarily under the clinical team any longer, but you’re not able to function normally at home as you perhaps once used to,” she added.

“And actually, someone to help talk you through that, show you and guide you through that sort of phase that comes after treatment, I think is really valuable.”