Princess Charlotte Resembles Prince William in Charming New Photo

The young royal just celebrated her 10th birthday and fans can't stop raving about how much she's grown—and her striking resemblance to her father, Prince William.

Princess Charlotte Elizabeth Diana is all grown up! Her parents posted a beautiful tribute on their joint Instagram account wishing their daughter a happy 10th birthday.

In the photo, the princess beams at the camera against a picturesque backdrop of mountains. She appears to be on a hiking trip, donning a camouflage jacket with a blue backpack slung on her shoulders.

Almost as soon as the post went live, fans flooded the comment section with well-wishes and kind words. Many marveled at how grown Princess Charlotte had become.

"Happy birthday Princess Charlotte! It's beautiful to see you growing up and I still can't believe you are 10 years old already 🥳🥳🥳," one person wrote.

"Congratulations my love! It's been 10 years, how time flies! We all love you ❤️❤️❤️❤️," another gushed. "Wishing Princess Charlotte a very Happy 10th Birthday 🥳🎂💚. Can't believe she's already 10 but she's so beautiful and adorable 💗," a commenter marveled.

Others couldn't help but notice Princess Charlotte's resemblance to her father. "She's like William who is like his mother. Diana's girl all over 😍," one fan observed.

"Happy Birthday Princess Charlotte! Who is clearly her father's mini-me!! 🎂🎂" another said. "Omigoodness her father's daughter [sic]!" someone else echoed.

The British Royal Family Crown also chimed in in the comments: "Like father, like daughter ❤️." Princess Charlotte's birthday comes just over a week since her younger brother, Prince Louis, celebrated his seventh on April 23.