PRINCE Andrew was under fire again last night over claims he used his trade envoy role to help a millionaire financier friend.

He was said to have helped promote David Rowland’s Luxembourg-based bank during his ten years on taxpayer-funded missions for Britain.

3 Prince Andrew allegedly promoted a Luxembourg-based bank for the super-rich Credit: BBC Newsnight

The duke, 59, was alleged to have arranged meetings with overseas business leaders, which allowed the financier’s team to recruit clients — and to have let him see classified government documents.

The revelations, in a series of leaked emails, prompted calls for an inquiry into the royal’s time as UK envoy between 2001 and 2011.

Labour’s Chris Bryant, a former Commons foreign affairs committee member, said: “It all just stinks.

"I don’t think he’s ever been able to draw a distinction between his own personal interest and the national interest. It’s morally offensive.”

3 The Duke of York - Prince Andrew - pictured with Virginia Roberts, who he says he can't recall meeting Credit: Rex Features

The emails, obtained by The Mail on Sunday, heap pressure on the duke, who has had to stand down from public duties following revelations over his links to billionaire paedophile Jeffrey Epstein.

One discussion with Rowland’s son Jonathan in 2011 came when the Duke was first facing scrutiny over his friendship with Epstein.

Responding to a message about their business interests continuing “under the radar”, Andrew is said to have replied: “I like your thinking.”

It is also claimed that the duke allowed Jonathan to accompany him on trade visits to China and Saudia Arabia.

3 Prince Andrew's interview with Emily Maitlis was described as a 'car crash' Credit: BBC Newsnight

He was said to have been allowed to speak to hosts about his family’s bank which offers a discreet service for billionaires.

In another protocol breach, Andrew’s most senior aide — his private secretary Amanda Thirsk — sent the Rowlands a copy of a government-only cable on China.

She was behind the prince’s car-crash Newsnight interview and was later forced to step down from her royal role.

David Rowland, a guest at Princess Eugenie’s wedding, was also said to have paid £40,000 to help clear the debts of the Duke’s former wife Sarah Ferguson.

Prince Andrew was alleged to have arranged meetings to help David Rowland's team recruit clients

The 74-year-old and his son, Jonathan, 44, are reported to be worth £612million.

Buckingham Place insisted the Duke’s role as envoy was to “promote British interest overseas and not the interest of individuals” while Mr Rowland could not be reached.

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The duke is struggling to shake off claims he slept with a 17-year-old, Virginia Roberts, now Virginia Giuffre, who says she was kept as Epstein’s sex slave.

He denies any wrongdoing, claiming he was with his daughters in a Pizza Express in Woking at the time.

Epstein, 66, was found dead in his jail cell in the US in August.