Prince William, Kate Middleton’s children to attend Lambrook School

Prince William and Catherine mark a major milestone as they drop all three of their children at their brand-new school.

The Duke and Duchess of Cambridge have dropped off all three of their children at their new school after moving to Windsor.

In photographs released of the family arriving, the Cambridge siblings looked confident in their summer uniforms as they walked into the Lambrook School to attend a 90-minute orientation session for new pupils and their families.

Prince George, Princess Louis and Princess Charlotte arrive at their new school with their parents, the Duke and Duchess of Cambridge. Picture: Jonathan Brady - Pool/Getty Images

Prince George keeps a watchful eye on younger brother Prince Louis. Picture: Jonathan Brady - Pool/Getty Images

Princess Charlotte has a spring in her step as she walks with her father Prince William. Picture: Jonathan Brady - Pool/Getty Images

The royals looked happy and relaxed as they arrived at the Lambrook School. Picture: Jonathan Brady - Pool/Getty Images

For the first time, Prince Louis, 4, will be joining his older siblings at school.

The youngest Cambridge child, who charmed the world with his loveable antics at the Platinum Jubilee celebrations, is starting pre-prep at the prestigious school near Ascot in Berkshire alongside Prince George, 9, and Princess Charlotte, 7.

The Duchess of Cambridge took school run fashion to the next level with a brown polka dot dress by British label Rixo, paired with matching tan coloured heels.

Headmaster Jonathan Perry greets the children as they arrive for a settling in afternoon at Lambrook School, near Ascot. Picture: Jonathan Brady - Pool/Getty Images

Her hair was worn in her signature bouncy blow dry style, and she kept her makeup neutral for the occasion.

Prince William called his children “all the gang” as he ushered them up the steps of the large white 19th-century country mansion, while Prince George, Charlotte and Louis all said they were “excited” to be starting.

The Lambrook school will cost the couple in excess of $120,000 a year in total for their three youngsters.

The Cambridge siblings were greeted by their new headmaster Jonathan Perry.

“Welcome Your Royal Highnesses,” he told them, to which Catherine replied: “Very nice to see you.”

Prince William and the Duchess of Cambridge headed inside with the children for refreshments before the siblings went to their new classrooms.

The family have relocated from Kensington Palace to Adelaide Cottage in Windsor Great Park and the new school is just a 20-minute drive away.

Originally published as Prince William, Kate Middleton’s children to attend Lambrook School