Prince Andrew has been accused by a former Downing Street adviser of using the N-word during a meeting at Buckingham Palace in 2012.
Rohan Silva, who was David Cameron's key aide and is now an Evening Standard columnist, said the remark was made during a discussion about trade policy.
The claim comes as the Duke of York faces an ongoing backlash over his "car crash" interview with Emily Maitlis on BBC Newsnight about the Jeffrey Epstein sex scandal.
The prince had hoped he could address the accusations against him head-on but the interview has been widely criticised, with commentators condemning his unsympathetic tone and lack of remorse for the friendship with Epstein.
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