The Duke of Sussex's manner showed how personal this was to him, delivering terse and sometimes tense answers.

The Duke of Sussex has spent years fighting the British media in courts, becoming a prominent face of the movement to uncover the extent of alleged abuses after the phone-hacking scandal.

Prince Harry bristled under questioning from opposing counsel—and even pushed back against the trial’s judge—as he gave evidence in his case against Associated Newspapers Limited (ANL), the publishers of British newspapers The Daily Mail and the Mail on Sunday.

Prince Harry named Prince William and Kate Middleton as past contacts in his witness statement in his lawsuit against Associated Newspapers Limited.

An emotional Prince Harry struck a defensive tone at the start of his testimony against the Daily Mail's publisher.

The Duke of Sussex arrived at London's High Court on Monday “confident and ready,” a spokesperson told NBC News ahead of his battle with the publisher of the Daily Mail.

According to Rob Shuter, the two have been in contact, with Harry stepping into a kind of mentor role for the oldest Beckham. “Harry sees a lot of himself in Brooklyn,” an insider said. “He doesn’t want Brooklyn to make the same emotional and strategic mistakes he made when he first broke away.”

In a witness statement, Harry said that the royal family’s famous “never complain, never explain” policy meant that he didn’t speak out against media intrusion in his life sooner.