He is taking the stand — and spreading more royal gossip and allegations — in multiple lawsuits against the British press.

LONDON — Prince Harry is about to take his battle with the media to a historic new stage, becoming the first high-ranking member of the British royal family in 130 years to appear as a witness in court.

Prince Harry was reprimanded by a judge after not appearing in court for the first day of trial. The Duke of Sussex is expected to testify in the lawsuit against Mirror Group Newspapers that accuses the organization of allegedly hacking into his phone.

Prince Harry will break royal precedent once again when he testifies this week in court, becoming the first British royal to do so in more than a century. Harry, the Duke of Sussex, is expected to take the stand Tuesday and Wednesday in his lawsuit against Mirror Group Newspapers, the publisher of the Daily Mirror.

Prince Harry will take to the witness stand Tuesday as his years-long battle against Britain’s tabloid media reaches its most dramatic stage so far.

The last senior British royal who spoke in court was Princess Anne, Harry’s aunt, in 2002. Her one-word statement: “Guilty.” Anne was charged under the Dangerous Dogs Act after her English bull terrier Dotty attacked two children in Windsor Great Park. The princess was ordered to better train her dog and pay about $1,400.

Prince Harry will become the first British royal to appear in the witness box since the 1890s when he testifies this week at the High Court in London as part of his lawsuit against Mirror Group Newspapers.