The Prince of Wales spoke out during his visit to the Isles of Scilly.
ET chats with royal expert Katie Nicholl about Prince Harry returning to London for the 10th anniversary of the Invictus Games.
The Duke of Sussex founded the games after his time in the British Army.
The Princess of Wales announced on March 22 that she had been diagnosed with cancer.
Princess Charlotte entering her pre-teen era! Kensington Palace celebrating her 9th birthday with a new photo taken by Kate Middleton.
The Princess of Wales is currently undergoing treatment for cancer.
King Charles and Queen Camilla were spotted meeting with patients at a cancer center following the king's cancer reveal in February.
Royal expert Katie Nicholl chats with ET about King Charles' desire to reconcile with Prince Harry following his cancer diagnosis.
Middleton announced on March 22 that she had been diagnosed with an undisclosed form of cancer.
The royal couple's anniversary comes months after Kate Middleton's cancer diagnosis.
The palace released a statement stating that King Charles will return to his royal duties after his cancer treatment.
Prince William seemed in good spirits while making an official out-of-town appearance.
The Palace has released the first new photo taken by Kate Middleton after its photoshop scandal.
Kate Middleton announced she was battling cancer last month.
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