Prince William carries his only daughter Princess Charlotte in this adorable but rare photo.

A netizen shared photos of Prince William carrying his three children in different events. One photo featured the future king with Princess Charlotte in his arms. The doting dad is all smiles as he tries to entertain his adorable daughter.

“Princess Lottie looks like a doll,” one commented on the photo on Twitter.

The majority praised Prince William for being a sweet and wonderful father. Many found the pictures adorable and beautiful. Prince George and Prince Louis’ cuteness also didn’t go unnoticed to royal followers.

The Duke of Cambridge is rarely seen carrying his only daughter with Kate Middleton. In fact, one netizen took to Quora and asked why it was always Middleton who concentrated on their little girl. The royal fans had different theories about this matter.

“Because when the kids were smaller, William used to carry George. George is older, and therefore bigger and heavier, than Charlotte. I daresay that William will now carry Charlotte and Kate will carry Louis,” Chrissie Nyssen commented.

One online user said that Princess Charlotte has her own legs and doesn’t need to be carried. Another netizen opined that he actually did not notice this but offered several reasons.

According to Georgina Lees, the Duke and Duchess of Cambridge probably do this for the press, so they could take pictures with the second and third in line to the throne together. He also agreed that it was probably due to their children’s weight. Prince George was heavier so Prince William carried him while Middleton looked after Princess Charlotte. It was also possible that Prince George was a daddy’s boy and Princess Charlotte was a mummy’s girl.

Frances De La Rue supported one of Lees’ theories about the future kings Prince William and Prince George being together in one picture. “Because the future king carries the future king. Strongest role model is same sex parent. Bonding takes place almost immediately if you are a royal heir,” she wrote.

Prince William, Kate Middleton, Prince George and Princess Charlotte
Prince William admits that he is “useless” when it comes to arts. Pictured: Prince William, Prince George, Middleton and Princess Charlotte arrive at the Victoria Airport on Sept. 24, 2016 in Victoria, Canada. Getty Images/Chris Jackson