Prince Harry 'sent deliberate message to King Charles to grab his attention' - expert

Prince have been trying to send a secret message to during his string of solo appearances, an expert has claimed.

The visited New York, London and Southern Africa during his travels, which saw him speak out on a number of issues concerning the charitable causes he holds dear to his heart.

As his trip away from home brought him to London, many wondered whether it would provide the opportunity for him to meet up with his estranged father. The pair have had a rocky bond of late and had failed to see one another when Harry made a trip to the UK earlier this year in May.

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But the King remained in during Harry's fleeting visit to London but one royal expert believes that while out on his charitable endeavours, Harry has still been making a nod to his father. Speaking on behalf of , former royal butler Grant Harrold, who previously worked for Charles explained: "Diana was a massive advocate for so many charities, and Harry has been inspired by that. This trip has seen Harry speak about his mother and her legacy and it's definitely a tribute to her. But he's also spoken passionately about climate change, which is a cause close to his father's heart.

"I have no doubt he was honouring his father too. He loves and respects Charles and has a great deal of admiration for him. I think he's wanted to go out there and give a nod of support to his dad and maybe he'll hope that Charles will see this and get behind him."

Harry has made several trips back to the UK his year, including in August to attend the funeral of his late uncle Lord Robert Fellowes, the husband of Princess Diana's sister Lady Jane Fellowes. On that occasion, he did not meet up with his dad, although the event was also attended by - but the two warring brothers are said not to have spoken to each other.

Before that, Harry was in the UK in May for a 10th-anniversary service for the Invictus Games at St Paul's Cathedral in London, with the King also in the capital on the same day. It had been hoped that father and son were on the road to begin repairing their rift, especially after they met when Harry dashed to the UK after it was announced that Charles had been diagnosed with cancer in February.

However, eyebrows were raised at the time, was too busy to see him and reports later claiming the King had offered his son a place to stay in a royal residence.

Later, sources close to the Sussexes claimed that Harry's calls to his dad are going unanswered as Harry tries to discuss his security arrangements with his father. The Duke has been embroiled in a long-running battle over his security when he comes to the UK after he automatically lost the right to his police protection when he stepped down as a working royal.

He has lost his subsequent court battles to have it reinstated for him, wife Meghan and their two children and is planning an appeal. According to , Harry believes his dad could help to have this reinstated, although this has been dismissed as "wholly inaccurate" by a palace source.

And a friend of Harry's told the magazine: "He gets 'unavailable right now'. His calls go unanswered. He has tried to reach out about the King's health, but those calls go unanswered too."