When parents break the news to their kids they are divorcing it is never an easy conversation to have.
And Princess Diana is said to have gone to Prince William’s school when she tried to explain about Prince Charles’ affair.
Speaking in her 1995 interview with the BBC's Martin Bashir, Princess Diana said she tried to talk the heartbreaking decision through with her young son, The Sun reported.
The royal said: “I went to the school and put it to William, particularly, that if you find someone you love in life you must hang on to it and look after it, and if you were lucky enough to find someone who loved you then one must protect it.
"William asked me what had been going on, and could I answer his questions, which I did. He said, was that the reason why our marriage had broken up?
"And I said, well, there were three of us in this marriage, and the pressure of the media was another factor, so the two together were very difficult.
"But although I still loved Papa I couldn't live under the same roof as him, and likewise with him."
After chatting things though with William, she admitted she didn’t know how he felt for a few hours, as he’s a “deep thinker”.
She added: “But I put it in gently, without resentment or any anger.”
Unfortunately, Prince Harry didn’t hear about the affair until he saw it on TV, according to Marie Claire.
Despite any tensions between their parents, both William and Harry are fiercely protective of their late mum.
William said after he became a patron of the Child Bereavement Charity in 2014: “Losing a close family member is one of the hardest experiences that anyone can ever endure.