It’s clear how much the toxic marriage, as well as the tough divorce, affected Diana.

Herrecently unearthed letters revealed even more about her difficult split from Charles.

And, we all know by now that the process was far from easy for Charles, as well.

King Charles III and Princess Diana

Why do you make Mummy cry all the time?"

Princess Diana holding baby Prince William with Prince Charles

Prince WIlliam, Prince Harry, and Princess Diana