Prince William is apparently concerned for his little brother's mental health after an illuminating documentary shed light on his struggles in the public eye.
The Duke and Duchess of Sussex were unusually open about their life as the world's most highly scrutinised couple in a recent ITV show about their royal tour of Africa.
In Harry & Meghan: An African Journey, Prince Harry addressed rumours of a widening rift between himself and his brother William, confirming the two are "certainly on different paths at the moment".
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"We don't see each other as much as we used to because we are so busy but I love him dearly," he said.
"The majority of the stuff is created out of nothing but as brothers, you know, you have good days, you have bad days."
A Kensington Palace source told the BBC the Duke of Cambridge is "worried" about Prince Harry in light of his comments.
The rest of the Royal Family is reportedly under the impression Harry and Meghan and are in a "fragile place", and Prince William is hoping his brother and sister-in-law "are all right".
Prince Harry also told documentary makers that he constantly worries about "history repeating itself" as he sees his wife Meghan fall victim to the same vicious media speculation that ruined his mother's life.
Meghan herself opened up about the impact of royal fame on her personal life and new motherhood, tearfully admitting she's "not really okay". She said she feels "vulnerable" and unprepared for the level of media attention she would receive, including coverage accusing her of "diva" behaviour or negatively comparing her to the Duchess of Cambridge Kate Middleton.
"When I first met my now husband, my friends were really happy because I was so happy, but my British friends said to me, 'I'm sure he’s great, but you shouldn't do it because the British tabloids will destroy your life'," she said.
Both the Duke and Duchess have launched legal action against newspapers in recent months. Meghan is suing The Mail on Sunday for publishing a letter she wrote to her estranged father, while Harry has initiated legal action against The Sun, the now-closed News of the World and the Daily Mirror over alleged phone-hacking.