Prince Harry was just 12 years old when his mother was killed in a car accident.
In a remarkable interview, the Prince spoke frankly about his mental health for a full 30 minutes.
He said the death of his mother had "a quite serious effect" on his mental health, leading to grief and anxiety he didn't address until his late 20s.
He counted himself lucky that after 20 years of avoiding the grief, he had only two years of "total chaos".
"I can safely say that losing my mum at the age of 12 and therefore shutting down all of my emotions for the last 20 years has had a quite serious effect on my personal life, but also my work as well," he told Bryony Gordon for her podcast, Mad World.
Prince Harry said he only sought help three years ago, after his brother Prince William told him he needed to deal with his grief.