Kate Middleton saw her former history teacher in Cornwall on a work trip with Prince William.

She broke royal rules when she gave Jim Embury, who was helping out at the event, a big hug.

Kate told her old teacher that she teaches her own kids the things he taught her.

About 25 years ago, Jim Embury taught Kate, and when they met again, he was so excited.

He said that Kate hasn't changed one bit and is still conscientious, considerate, and exuberant.

Kate and her husband spent the day learning about Cornwall's maritime history and playing with kids who were there.

She petted a local dog and was seen having a great time playing table tennis with her husband.

Jim Embury had no idea his old student would be visiting until he was invited to volunteer that morning.

It was an incredible meeting for Jim, and he shared that Kate is a wonderful woman.