Prince Harry held back tears as he said the Daily Mail had made his wife Meghan's life "an absolute misery," during his appearance in the witness box on Wednesday at London's High Court in his privacy lawsuit against the paper's publisher.

The Duke of Sussex is the lead litigant in a case full of high-profile plaintiffs who accuse the publisher of the Daily Mail of invading their privacy.

The prince is one of seven high-profile claimants that allege the publisher of the Daily Mail and Mail on Sunday committed "grave breaches of privacy".