Prince Harry appeared to send a subtle message to his older brother, Prince William, as he attended court to give evidence against Associated Newspapers Limited.
The royal added a spot of colour to his signature navy suits, with a burgundy and navy tie.
The Duke of Sussex was last seen in the two-tone tie in 2017 alongside his brother William.
The brothers matched ties when they were photographed together at the Canadian National Vimy Memorial back in April 2017.
Prince Harry was last seen wearing the tie as he matched with Prince William on a trip to Canada in 2017
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During his visit to the High Court, Harry mentioned William and his wife, The Princess of Wales.
The duke filed the document as part of his ongoing legal action against ANL, which publishes the Daily Mail and The Mail on Sunday.
Harry, 41, took the stand to give evidence in London on Wednesday, joining several other high-profile claimants who accuse the newspaper group of unlawfully gathering private information. The publisher denies these allegations.
The list of 10 associates was included to demonstrate individuals Harry claims he regularly communicated with between approximately 1996 and 2014, bolstering his argument that personal details could only have been obtained through illegal methods.
The witness statement characterised the brothers' bond during those years as one built on mutual confidence and openness.
"Due to his position, the press have always been very interested in him," Harry wrote of William.
Prince Harry named Prince William in his High Court trial
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"As brothers, we naturally discussed personal aspects of our lives as we trusted each other with the highly sensitive information we shared about our private, family and professional lives."
This portrayal of their former closeness stands in stark contrast to their current relationship. The siblings have been publicly estranged for several years.
Sources have confirmed that during Harry's present trip to London for the trial, no meetings with William were scheduled. The tensions between them remain unresolved.
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King Charles appeared second on the list, with Harry noting the intense press scrutiny his father faced due to his royal position.
"During the Relevant Period, my father and I were in regular contact," the statement reads. Harry added that voicemails left on his father's landline phone by himself, relatives and Royal Household staff contained "highly personal, private and sensitive information."
Despite both being in Britain simultaneously, Harry had no arrangements to see the King during this visit, months after their reunion in London last September.
Prince Harry fought back tears as he gave his statement during his High Court trial against Associated Newspapers Limited
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The entry for Chelsy Davy, whom Harry dated intermittently from 2004 until around 2010, detailed their predominantly long-distance relationship across different countries.
Harry stated he trusted Ms Davy "with the most private of information," noting that private investigator Gavin Burrows admitted conducting "lots of unlawful activities" concerning her.
Princess Kate's entry proved the most concise of all those listed, appearing ninth with minimal elaboration. The statement simply noted: "HRH The Princess of Wales, my brother's wife."
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