Prince William 'ageing like fine wine' as fans spot detail about marriage to Kate

Royal fans say Prince William is 'ageing like a fine wine' and spotted an adorable detail about his marriage to Kate Middleton. The Prince of Wales is celebrating his 43rd birthday today (Saturday, June 21), but at an event earlier this week, people were delighted to see the future king grinning at his wife.

The couple appeared united as they attended the Order of the Garter in Windsor on Monday (June 16), where William sported the dark blue velvet mantles, the insignia of the order, and the distinctive feathered bonnet. Meanwhile, Kate stunned in an all-white ensemble, including a Self-Portrait dress and matching wide-brim hat.

In a post to X following the occasion, the Prince and Princess of Wales' official account said: "A pleasure attending the Order of the Garter today in Windsor.

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"A brilliant celebration of tradition, service and duty. Thank you to everyone involved."

Fans were quick to comment on the post, with one person writing: "Those two are aging like a fine wine!"

Meanwhile, others spotted the look of 'true love' Princess Kate appeared to be giving her husband.

One wrote: "20+ years & 3 adorable children[...] Catherine only has eyes for Prince William. This is true love."

However, not everyone was enamoured with William's look.

"Lovely. However, William needs gone of that beard. Makes him look old," one person wrote.

Meanwhile someone else added: "What a treat for us Royal watchers! Princess Catherine looks absolutely stunning and Prince William as handsome as ever!"

Another fan added: "Prince William and Princess Catherine look absolutely stunning and majestic!!"

Fans may now be speculating as to whether William's estranged brother, Prince Harry, will wish him a happy birthday this year.

The brothers are not thought to be on speaking terms, however the Duke of Sussex received a surprise birthday message from the various members of the Firm on social media.

Taking to X, the Royal Family shared a snap of a smiling Harry to mark his 40th birthday. The message, complete with a cake emoji, said: “Wishing The Duke of Sussex a very happy 40th birthday today!”

Meanwhile, William and Kate’s X account shared an almost identical message.

It read: “Wishing a Happy 40th Birthday to The Duke of Sussex!”

At the time of writing, it remains to be seen whether Harry will return the favour for his brother's birthday.

Meanwhile, the Princess of Wales and the couple's three children paid tribute to William earlier this month to mark Father's Day.

On the Prince and Princess of Wales' official X page, a post read: "Happy Father’s Day, Papa (before and after!) We love you! G, C & L," referring to Prince George, Princess Charlotte and Prince Louis, aged 11, 10 and seven respectively.