Royal family fans gushed over Princess Charlotte's "adorable" curtsy to the Queen.

The four-year-old royal captured everyone's hearts as she joined her parents and her older brother, Prince George, for the the annual Christmas Day service at Sandringham. It was the first time that George and Charlotte joined their parents. Although, their younger brother Louis is thought to have stayed at the house. And eagle-eyed fans soon noticed Princess Charlotte's scene-stealing moment as she tried to replicate her mum's curtsy to the Queen. A clip doing the rounds on Twitter shows Kate Middleton curtsying, with Charlotte holding onto the side of her coat and following suit a moment later.

Okay but Charlotte’s curtsied to the Queen! OMG! So cute! Her momma didn’t first but she did it and she did it like a true Princess! she held her coat and curtsy! So freaking cute! pic.twitter.com/jUlEUd67X1

— Isa (@isaguor) December 25, 2019

She is so well mannered.

— Bellarossy (@Bellarossy4) December 25, 2019

The cutest thing ever ?

— Dee ? (@for_astrology) December 25, 2019

Omg the way she pulls out her little coat b4 the courtesy Soooooooo sweet❤❤❤❤

— ❤ tweets with luv (@tips_talk) December 26, 2019

Yes, she did!! & what a magnificent curtsy it was!!

— RPD ????????????????? (@rpd0319) December 25, 2019