Prince William and Kate Middleton just made another addition to their family, but they have another important milestone to celebrate.

The royal couple has been married for seven years now and counting.

Looking Back Fondly

Also, a royal wedding is set to happen in just a few weeks, with Prince Harry and Meghan Markle tying the knot on May 19. However, this past weekend was all about celebrating those who came before.

Kensington Palace marked the occasion with an adorable throwback photo from the Duke and Duchess of Cambridge's wedding day in 2011.

The pic sees Prince William and Kate driving away in a blue convertible, with the bride waving happily to the onlookers. The car is adorned with balloons and streamers while the license plate reads "JU5T WED."

"Seven years ago today — thank you for all the lovely messages on The Duke and Duchess of Cambridge's wedding anniversary," reads the accompanying caption.

A Royal Fairytale

Prince William and Middleton met when they were both studying at the University of St. Andrews. He proposed in 2010, with a stunning sapphire and diamond engagement ring that once belonged to his late mother, Princess Diana.

Their wedding took place a year after at London's spectacular Westminster Abbey. Middleton wore a now-iconic Alexander McQueen gown while Prince William wore his red Irish Guards Mounted Officer's uniform.

The wedding attracted the same sort of public fervor as that of Lady Diana and Prince Charles's nuptials back in 1981. The happy couple soon settled in the stylish environs of Kensington Palace.

They've welcomed three children in the intervening years: Prince George, 4, Princess Charlotte, 2, and their latest bundle of joy, Prince Louis, who was born just last week on April 23.

A Growing Family

Their expanding family has made the royal couple ecstatically happy, as several sources have revealed.

"It completes them," royal biographer Ingrid Seward told PEOPLE.

The 36-year-old Middleton has two siblings, so she's used to a big family and might be trying to recreate that same dynamic. Parenting reportedly suits her and Prince William really well.

Both George and Charlotte are very excited about the new addition to the family in spite of Middleton's initial concerns.

"Kate's worried that Charlotte will feel it the hardest as the youngest, but she's such a confident little girl and growing up so fast, Kate is hoping she will adjust," a source confirmed.

Locals in her hometown of Bucklebury are thrilled about the new little prince.

"Everyone around here is thrilled for them. It's lovely that George and Charlotte have a little brother to play with," a local gushed.

They're holding out hope that he will be down the local park playing with the other children if he ever leaves the expansive Kensington Palace.

Tags: Prince William Kate Middleton Royal Wedding Prince Louis