She sang, for the first time, the anthem
God Save The King
.
Princess Charlotte attended the funeral of Queen Elizabeth II on Monday, September 19, at Westminster Abbey.
And the 7-year-old girl completely grasped the solemn significance of the event.
The daughter of Kate Middleton and Prince William remained incredibly calm, in the midst of some 2,000 guests at the event.
On this occasion, Princess Charlotte wore, for the first time, a ceremonial hat and a diamond brooch, in the shape of a horseshoe.
A jewel that could be a nod to his great-grandmother, a horse riding enthusiast.
Read alsoFuneral of Elizabeth II: photos of the ceremony at Westminster Abbey
In video, the eight grandchildren of Queen Elizabeth II gathered around her coffin for a vigil
The support of Sophie de Wessex
His older brother, Prince George, 9, was also present at the funeral.
During the mass, the little boy did not depart from his solemn expression.
This did not prevent his great-aunt Sophie from Wessex from comforting him discreetly, putting an arm around his shoulders.
The heir to the English throne and his sister stood alongside their wise and disciplined parents in the procession following the monarch's coffin and then in the audience at the event.
They later followed Queen Consort Camilla, Meghan Markle, Kate Middleton and Sophie of Wessex outside the building.
Their little brother, Prince Louis, 4, was absent due to his young age.