Prince William 'psychology' changed after Princess Diana explosive interview

Prince William deeply values the privacy of his family, says royal expert.

The Duke of Cambridge, who is private about his life outside public duties,

became 'controlling' after the very transparent life of his mother Diana.

Speaking to ITV documentary Katie Nicholl revealed that William "guards the

privacy of his family more highly than anything else in his life".

Ms Nicholl noted that "it doesn't take a psychologist to work out why",

adding, "you only need to look at this own background".

Meanwhile, the Duke of Cambridge remains angry over his mother's explosive tell-

all with Martin Bashir, where she was manipulated to pass scandalous statements.