>> reporter: it is impossible to talk about charles without mentioning the late princess diana. >> the charles and diana story was the fairytale that turned into the nightmare that ultimately turned into a tragedy. >> i cannot believe what he has done. >> what a shame. -- >> reporter: british journalist sarah -- jack royston and camilla have covered the royals for decades. >> we went back to old poland back in 1991. this is one year before it first became public knowledge. as many as 82% of britain that he would make a good king. by the time they divorced in 1996, only 41% of great britain thought he would make a good king. >> you were born into roles that are very set. you are born into roles that