Princess Charlotte melts hearts all over the world with adorable moment at royal wedding

Princess Charlotte has captured the attention of royal fans all over the world ever since she was born, but now an adorable moment caught by the cameras at the royal wedding is melting even more hearts.

The little royal, who recently turned three years old, joined her family to celebrate her uncle Prince Harry and new aunt Meghan Markle's big day at St George's Chapel, Windsor Castle, on Saturday.

Of course Princess Charlotte wasn't just a regular guest - she was among the six lucky girls picked by Meghan Markle to join her bridal party as her bridesmaids, while her big brother Prince George was one of the four pageboys.

But while we bet you saw her walking down the aisle just behind the gorgeous bride - who gave her new niece an incredibly sweet wedding memento - you might have missed the adorable moment that happened outside the chapel, after the ceremony had ended.

After all the kids in the bridal party waited for the service to end - as it was revealed why they weren't seen in church - the entire royal family came out to witness Prince Harry and Meghan Markle's first kiss on the steps of the church.

While Princess Charlotte stood next to her mum Kate - who made her first appearance after welcoming her third child, Prince Louis, at the royal wedding - she had to let out a sneeze.

Showing just how polite she is, the little bridesmaid was seen putting her hand over her mouth before letting her sneeze out.

Of course as soon as she was done sneezing, our little royal returned to doing what she does best - causing collective sighs around the world every time she waves.

The royal sneeze didn't go by unnoticed by royal fans, who took to social media to gush about the adorable moment.

One said on Twitter: 'I will watch this toddler sneeze all day. Bless you, Princess Charlotte'.

A second wrote: 'I can’t get over the picture of Princess Charlotte sneezing! 😱😍 she is the cutest!'

A third also took to Twitter to comment on how cute Kate and Wills' daughter is: 'Princess Charlotte sneezing... she’s so bloody cute, she makes my heart melt 😭😭❤️❤️'.

Who knew a sneeze could be THIS cute?