William reportedly found some tissues and pushed them under the bathroom door for his mother.

“I hate to see you sad,” he reportedly told her at the time.

At this time, William reportedly gave his mother a sweet gift to cheer her up.

Prince William smiling

“And said, ‘Mummy, I think you’ve been hurt.

These are to make you smile again.'”

However, that’s hasn’t always been William’s career goal.

Young Prince William with his mother Princess Diana

“He also had a natural knack of spotting what Princess Diana needed.

Whenever Diana felt uncertain, William was there for her.”

He continued: “He once told her he wanted to be a policeman so he could protect her.

Her heart must have ached with love at his earnest words.”

“William and Harry were aware of their destiny,” he wrote.

“On one occasion the boys were discussing their futures with Diana.

‘When I grow up I want to be a policeman and look after you Mummy,’ said William.