See Prince George, Princess Charlotte & Prince Louis's Special Handmade Gift for the Queen on Her Anniversary

Queen Elizabeth and Prince Philip just reached a major milestone. And they're celebrating with the help of some very special family members: their grandkids.

In honor of their 73rd wedding anniversary (yeah, we can’t believe it either), the royal family shared a new portrait of Her Majesty and the Duke of Edinburgh on their social media platforms.

In the photograph, the 94-year-old monarch and His Royal Highness are seen looking at an anniversary card made by Prince George, Princess Charlotte and Prince Louis, alongside other cards and letters sent by well-wishers. According to an Instagram caption, the sweet snap was taken by @Chrisjacksongetty in the Oak Room at Windsor Castle earlier this week.

Kate Middleton and Prince William shared an up-close look at their children’s brightly-colored artwork in their own congratulatory post. "Wishing a very happy wedding anniversary to Her Majesty The Queen and His Royal Highness The Duke of Edinburgh!" they wrote in the caption.

We have to admit the card is pretty impressive. Featuring a giant “73,” the card also includes a variety of bright circles. No word on what the card says inside (though, we bet all three kids signed their names for their Gan-Gan).

The new portrait isn’t the only image shared by the royal family for the big day. The account also posted a throwback photograph—a black-and-white shot from the couple’s post-wedding honeymoon appearance—thanking fans and followers for their well-wishes.