His appearance and cross-examination during the London trial will be the first by a senior British royal in any court case in modern times.

Britain's Prince Harry failed to appear on the first day of the trial over his phone-hacking lawsuit against the publisher of the Daily Mirror.

Prince Harry’s years-long battle against Britain’s tabloid media reaches its most dramatic stage so far this week, as the royal prepares to face questions in a London court as part of his case against a major newspaper publisher.

The Duke of Sussex is set to testify in the first of his five pending legal cases largely centered around battles with British tabloids.

Prince Harry failed to appear on Monday at the High Court in London where he is suing a British tabloid publisher, with the judge saying he was surprised by his absence and a lawyer for the papers calling his no-show "extraordinary".

Harry appearance in High Court on June 6 will be in a joint action against the Mirror Group, publishers of the Mirror. Here's the breakdown.