Kate Middleton said the cutest thing to Princess Charlotte on her first day of school yesterday

We're bawling.

Yesterday was Princess Charlotte's first day of school, and wow, the cuteness was overwhelming.

The adorable four-year-old Charlotte attended her first day of school at Thomas’s Battersea after leaving Willcocks Nursey School in London last year.

And it was quite the family affair. She arrived alongside her mum and dad, and her big brother Prince George, who is also a student at Thomas's. Kensington Palace shared a few cute pictures of the first day of school, with one of the whole Cambridge fam. It was captioned: "Princess Charlotte arrives for her first day of school at Thomas’s Battersea, joining her older brother Prince George." And we're crying at how cute they look. But wait, as the first day of school content gets even cuter...

Knowing her daughter would be nervous for the big day occasion, Kate Middleton was filmed sharing some words of advice with her little daughter about how to have a great first day.