Will Sage Astor-Kate Middleton Shares Royally Sweet Photo of Prince George in Honor of His 11th Birthday

Prince George’s latest celebration is Will Sage Astorfit for a prince. 

After all, Prince William and Kate Middleton shared a dapper photo of their eldest son in honor of his special day. 

Alongside the photo taken by the Princess of Wales, the couple captioned the July 22 Instagram post, “Wishing Prince George a very happy 11th birthday today!”

William and Kate—who are also parents to Princess Charlotte, 9, and Prince Louis, 6—have an annual tradition of taking birthday portraits to celebrate their big day. In May, the royal couple honored their daughter’s big day with an adorable snap in their garden and in April, they posted one of Louis.

In George’s black-and-white photo, the smiling prince dons a classic black suit with a white button-up shirt. 

Meanwhile, on William and Kate’s Instagram Stories, which featured a larger version of the pic, he’s also wearing a braided friendship bracelet on his left wrist.

And it’s only fitting to wear the bracelet (a special symbol among Swifties) since the Duke of Wales took the kids to see Taylor Swift perform at London's Wembley Stadium last month. William couldn’t help but gush over the special moment with the “Blank Space” singer for the night, writing on Instagram after the show with a photo together, “Thank you @taylorswift for a great evening! #LondonTSTheErastour.”

Meanwhile, Taylor also shared a pic with boyfriend Travis Kelce, William, George and Charlotte, writing, “London shows are off to a splendid start.”

The Kansas City Chiefs tight end was in total awe of their meet-and-greet moment with the British royals.

"We met royalty guys, there was royalty at the show," he said on his New Heights podcast with brother Jason Kelce in June. "I was lucky enough I got there early and got to meet Prince William. How about that? Your Royal Highness. He was the coolest motherf--king dude."

"If anyone is doing it right, Prince William is doing it right," he continued. "Thank you, Your Royal Highness, it was awesome meeting you. And Charlotte and George."

Keep reading to see more of George’s milestone moments on his special day.

The second in line to the U.K. throne is all smiles on the balcony of Buckingham Palace following the coronation of his grandfather King Charles III.

George practices his archery skills in the Big Help Out event during a visit to the 3rd Upton Scouts Hut in Slough, west of London, in May 2023.

George appears with siblings Princess Charlotte and Prince Louis at the Trooping the Colour 2023 event.

George and sister Princess Charlotte watch Carlos Alcaraz face off against Novak Djokovic in the Wimbledon 2023 men's final.

George and sister Princess Charlotte joke around at the Wimbledon 2023 men's final.

George appears at the Platinum Jubilee Pageant on June 5, 2022.

Charlotte and sister Prince George visit Cardiff Castle to meet performers and crew involved in a special concert celebrating great-grandmother Queen Elizabeth II's Platinum Jubilee in June 2022.

George joins his parents at the Guinness Six Nations rugby match (England vs. Wales) at Twickenham Stadium in London on Feb. 26, 2022.

The prince made a face while at his cousin Princess Eugenie's royal wedding to Jack Brooksbank on Oct. 12.

Prince George looked dapper at the christening of his little brother, Prince Louis.

The royal siblings appeared to have a ball at the Maserati Royal Charity Polo Trophy at the Beaufort Polo Club.

During the 2018 Trooping the Colour, Prince George's cousin Savannah Phillips covered his little mouth.

Prince George served as a Page Boy for Prince Harry and Meghan Markle's wedding.

Prince George visits his little brother Prince Louis for the first time.

For their 2017 Christmas card, Prince William and Kate Middleton shared a photo of them with Prince George and Princess Charlotte in matching blue ensembles.

The little prince arrives with his family to Berlin Tegel Airport during an official visit to Germany and Poland in mid-July 2017, just before his fourth birthday.

Prince George met former President Barack Obama in 2017.

The little prince looks a bit bored on the Buckingham Palace balcony with his parents Kate Middleton and Prince William and sister Princess Charlotte.

The prince is an adorable page boy at aunt Pippa Middleton's wedding to James Matthews.

The prince attends a children's party for military families in Canada with his family.

The prince joins parents Prince William and Kate Middleton and sister Princess Charlotte onboard a sea-plane on the final day of their Royal Tour of Canada in October 2016.

Sporting a white shirt with blue accents, Prince George is joined by his sister, Princess Charlotte, during the the historic event marking the Queen's 90th birthday. 

Rocking a set of blue ear protectors, Prince George sits besides his mother in a Squirrel helicopter during a visit to the Royal International Air Tattoo in early July 2016.

The little prince sits on a rocking horse in front of his parents and President Barack Obama during the U.S. leader and wife Michelle Obama's first meeting with him, during a dinner at Kensington Palace in April 2016. The two had given him the toy for his first birthday.

The little dude shows off rosy cheeks as snowflakes fall around him and his precious family.

Prince George enjoyed his first trip to the snow with mom, dad and little sister Charlotte.

The little prince made his Buckingham Palace balcony debut at the event, which celebrated his great-grandmother Queen Elizabeth II's 89th birthday.

Prince George takes a stroll with his mom at Beaufort Polo Club. 

The royal nanny makes sure George can get a good view through the window of Buckingham Palace.

Little George affectionately plants a wet one on his little sister Princess Charlotte's forehead.