Prince Harry’s Irish driver told he would be ‘hunted down’ if he exposed Diana’s last fatal journey

The royal also reveals the Irishman was supplied to him by the organisers of the rugby World Cup in France in 2007.

The further elaboration on his infamous tunnel re-enactment emerges in his new autobiography’ ‘Spare’, which went on sale today.

It is just one of two obvious references to Ireland in the tome, with his and wife Meghan’s visit to this country in July 2018, their first official visit overseas, seemingly overlooked.

His other Irish nod in the controversial book centres on his brother William’s wedding to Kate Middleton.

Harry recalls that when the pair met up on the morning of the wedding in 2011 the younger brother noticed that ‘Willy’ – as he calls him – did not seem in good humour.

“He was wearing the bright red uniform of the Irish Guards, not his Household Calvary frock uniform,” he recollects.

“I wondered if that was the matter. He’s asked Granny (the Queen) if he could wear the Household Calvary kit and she’d turned him down. As the heir, he must wear the Number One Ceremonial, she decreed.

“Willy was glum at having so little say in what he wore to get married, as having his autonomy taken from him on such an occasion. He told me several times he felt frustrated.”

Harry explains he tried to calm William down.

“I assured him that he looked bloody smart in the Harp of Ireland, with the Crown Imperial and the forage cap with the regimental motto: ‘Quis Separabit? Who Shall separate us?’.

“It still didn’t seem to make an impression.”

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Harry elaborates further in the book on what he already told ITV reporter Tom Bradby in their interview broadcasted in Britain on Sunday night, which referenced his driverwho brought him through the same tunnel his mother died in as being Irish.

The prince was in Paris for the semi-final of the rugby World Cup in 2007, and a city he had never visited before.

“The World Cup provided me with a driver, and on my first night in the City of Light I asked if he knew the tunnel where my mother….,” he drifts off, not going into detail about her tragic death there in August 1997.

He adds: “I watched his eyes in the rear-view growing large. He was Irish, with a kindly open face, and I could easily discern his thoughts: ‘What the feck? I didn’t sign on for this’.”

Harry remembers telling the Irishman the tunnel was called Pont de l’Alma, and he said he knew it.

“I want to go through it’,” Harry told him, to which he replied : “You want to go through the tunnel?”. The driver eventually agreed to do as he was asked.

The royal insisted his driver go at a speed of “65 miles per hour”, to which he clarified: “The exact speed Mummy’s car had supposedly been driving, according to police, at the time of the crash. Not 120 miles per hour, as the press originally reported.”

Harry reveals that his bodyguard ‘Billy the Rock’ warned the driver that if he ever told anyone about the re-enactment to “another human that we’d asked him to do this, we’d find him and there would be hell to pay”.

He maintains the bump in the tunnel where his mother’s car went off course was “nothing, we barely felt it”.

He asked the driver to go through the tunnel a second time again.

“I’d always imagined the tunnel as some dangerous passageway, inherently dangerous, but it was just a short, no-frills tunnel,” he stresses. “No reason anyone should ever die inside it.”