A new autobiography claims that Princess Diana kept a secret from Prince Charles when she found out she was expecting her second child.
Charles and Diana welcomed their first son Prince William in 1981. Less than two years later she announced she was expecting her second child.
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In the book Diana: Her True Story, author Andrew Morton says the People's Princess didn’t tell Prince Charles she knew she was having another boy.
Diana revealed to Morton: “I knew Harry was going to be a boy because I saw on the scan. Charles always wanted a girl.
“He wanted two children, and he wanted a girl."
“I knew Harry was a boy, and I didn’t tell him.”
Prince Harry was born on September 15, 1984.
It is claimed that Prince Charles’ reaction lacked enthusiasm as he was desperate to have a baby girl.
Princess Diana and Prince Charles went on to finalise their divorce in 1996.
WATCH: Prince Charles said he was 'confused' before marrying Diana