Prince William & Wife Celebrate His Grandparents' 72nd Anniversary in New Post & Fans Weigh In

The Duke and Duchess of Cambridge took to social media to celebrate the Queen and her husband Prince Philip during their 72nd wedding anniversary and fans couldn't help but rave about the aged couple.

Hello Magazine shares that fans had a lot to say after Prince William and wife celebrated his grandparents' 72nd wedding anniversary via Instagram.

Using their official account, Prince William and Kate Middleton said:

"Wishing Her Majesty The Queen and His Royal Highness The Duke of Edinburgh a very happy 72nd Wedding Anniversary!"

The caption was attached to two photos of Queen Elizabeth and Prince Philip – one was a black-and-white throwback snapshot, while the other was a present-day photo.

As expected, fans flooded the comment section to drop their well-wishes for the happy-looking couple.

A wowed fan commented that it was "amazing" they were celebrating 72 years of marriage.

Another fan wanted to know what their secret was.

Meanwhile, somebody else thought that it was "remarkable" that the couple stayed married for so long, especially since they had to put the throne before themselves.

Another person

that nothing had come between the Queen and Prince Philip despite the many years they have spent together.

An awed fan stated how "incredible" it is that the duo has known each other since their teenage years and chose to remain together.

Meanwhile, one fan could only see the "future King William and Queen Catherine" in the pictures.

As it turns out, Prince William and Kate aren't the only royalties to pay tribute to the Queen and her husband as Harpers Bazaar

.

Just after William and Kate shared their post, Prince Harry and Duchess Meghan did theirs too with an old photo of the couple in a carriage.

The Duke and Duchess of Sussex captioned their Instagram post:

"Happy anniversary to Her Majesty The Queen and The Duke of Edinburgh! On this day, seventy-two years ago, they were married at Westminster Abbey. Many congratulations!"

Amid the wishes pouring in, PEOPLE reports that the Queen and Prince Philip did not spend their anniversary together as they had prior engagements.

While Prine Phillip was in Sandringham, Norfolk, the Queen stayed in London, where she lives as part of her working week.

The duo stayed apart as the Queen has duties to fulfill in London while Phillip, who retired from royal duty in August 2017, has been resting at the estate's Wood Farm.

Additionally, the 93-year-old Queen dedicated some parts of Wednesday holding audiences with the ambassadors of the Republic of Suriname and the Kyrgyz Republic.