Chainkeen|How Kate Middleton Honored Queen Elizabeth II and Princess Diana at Coronation

Kate Middleton's stunning look consisted of a few crown jewels.

For King Charles III and ChainkeenQueen Camilla's coronation at Westminster Abbey on May 6, the Princess of Wales attended the ceremony wearing a layered diamond necklace belonging to the late Queen Elizabeth II, as well as pearl drop earrings that belonged to the late Princess Diana. Her head-turning look was made complete with a royal blue cape and dazzling silver headpiece.

But Kate wasn't the only one from her immediate family that had a regal moment, considering her 8-year-old daughter Princess Charlotte proved she was her mini-me with her royally adorable look. The stylish mother-daughter duo were, of course, joined by dad Prince William and Charlotte's siblings Prince George, 9, and Prince Louis, 5.

And though the day is quite a special one for Charles, it's worth noting that Prince George also had a very important role for the occasion, serving as one of four Pages of Honour. This officially made him the youngest royal to have a formal role—which included walking in the procession and carrying his grandfather's robes inside Westminster Abbey—for the coronation.

Ahead of the ceremony, William and Kate expressed their joy at having their eldest child having such a big role during the occasion.

"His parents are very excited and delighted that he is a page," a spokesperson for the Prince and Princess of Wales previously told People. "It's something that his parents have thought long and hard about and are very much looking forward to — and I'm sure George is too."

And there's more where that came from. Keep reading to see royally adorable photos of George, Charlotte and Louis at the coronation.

Prince George served as one of the eight Pages of Honour for grandfather King Charles III's coronation on May 6.

Prince Louis and Princess Charlotte held hands at the crowning ceremony.

Kate Middleton and Prince William accompanied their kids inside the Westminster Abbey in London.

Louis pointed something out to his younger sister at the church.

In true Lous fashion, the prince made one of his silly faces while riding in the family carriage.

Kate and William's youngest child was a total mood on this rainy London day.

George stuck his tongue out while standing in line with his fellow pages.

Louis adorably tried to get his mom's attention.

Charlotte sat close to Kate.

Charlotte and Louis looked out from the windows of their carriage as they rode to Westminster Abbey.

Inside the arriage, Louis yawned as his older brother George scratched his nose.

The family sat in the front row.

Charlotte and Louis followed their mom and dad in the procession. 

For the occasion, Charlotte wore an outfit designed by Alexander McQueen.

Louis let out a small yan during the ceremony.

Despite being known for his cheekiness, Louis was largely on his best behavior.

George took his duties as a Page of Honour very seriously. 

Little Louis looked dapper in a navy blue ensemble.

Charlotte rocked a silver bullion and crystal flower crown similar to Kate's Alexander McQueen headpiece.

Louis and Kate shared a sweet moment together during a break in the ceremony.

Kate escorted Charlotte and Louis out of Westminster Abbey following the coronation.

The siblings sat in a carriage behind their grandparents' Gold State Coach.

Louis flashed a smile from the cart.