Great-grandma knows best.

Who’s the boss? Princess Charlotte! That’s according to the woman who knows a thing or two about taking the lead.

Great-grandmother Queen Elizabeth said on Sunday that 2-year-old Charlotte rules over her 4-year-old big brother, Prince George.

Speaking to a 10-year-old school girl, Emily Clay, the Queen asked if she “looked after” her 6-year-old sister, Hadleigh. Mom Ellen replied, “It’s the other way around.”

The Queen, 91, quickly came back with, “It’s like that with Charlotte and George.”

The exchange happened at the Queen’s Sandringham estate in Norfolk, where Emily won a bible signed by the Queen for a school religious education project. (Her dad, Tom, won the same prize in 1990, the Eastern Daily Press reported.)

A source told PEOPLE last week that “confident” Charlotte, who is speaking some Spanish, has settled well into her preschool, Willcocks Nursery School, not far from the family’s London home, Kensington Palace.

Princess Charlotte attends nursey, London, United Kingdom - 08 Jan 2018
Credit: The Duchess of Cambridge/KENSINGTON PALACE/HANDOUT/EPA-EFE/Shutterstock

The Queen is staying at her country home in Norfolk, about 110 miles north of London, until early February. She usually remains there until after Accession Day on February 6, which marks the day she became Queen upon the death of her father, King George VI, in 1952. In rare public comments captured on camera, the Queen opened up about her historic 1953 coronation in a groundbreaking documentary that aired Sunday on Smithsonian Channel.

“I’ve seen one coronation, and been the recipient in the other, which is pretty remarkable,” she said.