“It’s clear Charlotte takes her role as royal prefect seriously,” Judi told the Mirror. “She even stood up, enthusiastically pointing her flag at William and urging George to pay attention when he wasn’t reacting enough.”

Charlotte’s “big sister” duties can be demanding. After the Coronation, Prince William shared that Charlotte was “very tired” from her responsibilities, opting for a quiet day at home. But while Charlotte occasionally steps in to scold her brothers, her love for them shines through. Sophie Mirman, founder of the British childrenswear brand Trotters, told PEOPLE how Charlotte is incredibly protective of Louis, and their bond has been evident since he was a baby.

For Charlotte’s third birthday, a sweet photo showed her cradling a baby Louis, planting a gentle kiss on his head. At Louis’ christening in 2018, while others smiled for the camera, Charlotte’s focus was solely on her baby brother, holding his hand with obvious pride.

The connection goes both ways. Proud dad William once shared how Louis looks up to Charlotte, especially during their lively mornings at home. “Charlotte runs around the kitchen in her dresses and ballet outfits, going completely wild, and Louis is right behind her, trying to copy everything she does,” William said.

Charlotte’s leadership and loving bond with her brothers continue to make her an integral part of the Wales family dynamic, whether at home or on the royal stage.