Princess Charlotte adorably repeated her mother's movement on Princess Eugenie's wedding photo

Princess Charlotte was simply picture-perfect for the official wedding portrait of Princess Eugenie on Friday. Prince George was all toothy-smile for the photo released on Saturday.

We're not sure if it was her mom or her nanny, but whoever taught Princess Charlotte the "Duchess Slant," taught her well. Or perhaps the clever tot picked it up on her own.

She could have gotten it from her mother, Kate Middleton, who was the one that birthed the cross-legged look as a comfortable way to sit during particularly lengthy events.

Follow us on Twitter for more @amomama_usa.

The little princess displayed the signature pose as she sat next to Prince George, who was the page boy at the wedding. Charlotte was the bridesmaid.

This was already the fourth time the two served as such in just two years. Three-year-old Charlotte's poise was hard to miss. While George's wide grin reflected the joy of the occasion.

The "Duchess Slant" has been adopted by many female royals including newly welcomed Meghan Markle.

Photographer Alex Bramall took out the photo. Other bridal party members were in it including Miss Mia Tindall, 4, Miss Savanna Phillips, 7, Miss Maud Windsor, 5, Miss Theodora Williams, 6, Miss Isla Phillips, 6, and Master Louis De Givenchy, 6.

Theodora is the daughter of singer Robbie Williams and wife Ayda Field, while Louis is the son of Zoe and Olivier De Givenchy.

The excellent posture of young Charlotte wasn't the only mannerism that stood out at the wedding from the little princess.

The princess also showed off her perfected royal wave as she arrived at St. George's Chapel for the ceremony.

She also gave another wave while going up the steps and while joining her fellow bridal party members afterward.

Missing from the picture was Prince Louis, who reportedly stayed home because he was too young to attend at only five months old.

Designer Amaia created the looks seen on the adorable kids who made up the royal party band.

Celebrity guests like Cara Delevingne, Ellie Goulding, Demi Moore, Kate Moss, and Liv Tyler helped make the wedding into an even grander star-studded affair.

Of course, the famous English singer Robbie Williams was present. Model Naomi Campbell also joined in the royal event which took place on Friday, October 12.

The wedding was followed by a reception hosted by the Queen on Friday night. A festival-style part was held on Saturday.