“My experience was about growing up and living a very public life and living in an overexposed environment.

The princess also took action.

“We did an hour of not really having a break so it was more high intensity stuff.

Princess Beatrice smiling

But always full body.”

They also regularly engaged in resistance training and boxing.

And rain or shine, Beatrice always showed up no matter what.

Princess Beatrice before and after

“We were outside every single session and she trained through all of it.”

“She eats, which helps.

“We noticed she was kind of appearing a bit chunky.

Princess Beatrice posing

So I began explaining a little of the Weight Watchers' regime.

I said: ‘OK, that’s it.

From now on, today only, no bread.

I think over-eating sort of runs in the family.”

Alas, her insecurities only intensified as the princess grew up in the public eye.

“It was very upsetting,” Fairweather admitted.

The trouble is, I don’t have much confidence so it can be quite upsetting.”