Savannah Phillips, Princess Anne's granddaughter and the Queen's first great-grandchild, served as the unofficial leader of the younger royals at this year's Christmas Day ceremony in Sandringham.
The 14-year-old took control, ensuring her younger relatives were well-behaved and pleased throughout the liturgy at St Mary Magdalene Church.
Autumn is dressed in an exquisite burgundy coat that she has recycled from her mother's closet.
Savannah, the 19th in line to the throne, coordinated with her aunt Zara Tindall at King Charles' Christmas service, demonstrating that she is already a crucial participant in the future generation of royals.
Savannah Phillips performed the role of royal babysitter during this year's Sandringham Christmas service.
Photographs show her managing compassionate relationships with her younger relatives, as well as assisting Princess Charlotte and Lena Tindall, all of whom clearly admire her.
Savannah also enjoyed a moment with ten-year-old Mia Tindall, who was photographed high-fiving her father, Mike Tindall, before returning to her royal duties, which included strolling beside Princes George and Louis while remaining watchful for any requirements.
Mike said in a 2019 interview that she and her cousin James, Viscount Severn, share leadership roles among the younger royals.
"James is the oldest, but Savannah is always ready to take charge," he remarked, implying that the royals' future may be in good hands.