Prince Harry and Prince William have been estranged for years, but one expert believes that could all change after Kate Middleton announced she was diagnosed with cancer

Kate Middleton shouldn’t be the peacemaker in Prince William and Prince Harry’s feud, but her cancer battle may have played a role in the slightly thawed relations royal fans have seen since the Duke of Sussex’s 40th birthday on Sept.

Kate Middleton and Prince Harry were once incredibly close, but their relationship is in tatters following the Duke and Duchess of Sussex's decision to step back from the Firm

Prince Harry had revealed exactly how he felt when he stood beside his brother, Prince William, as he and Kate Middleton said 'I do."

Here’s all the royal news you need to know for the week of. View this post on Instagram A post shared by The Prince and Princess of Wales (@princeandprincessofwales) Kate Middleton made her big return to royal duties after finishing preventative chemotherapy earlier this month.

Prince Harry is seemingly grateful for the meaningful gesture made by his sister-in-law Kate Middleton ahead of his return to UK.The Duke of Sussex, who is set to return to the UK to attend

Kate Middleton and Prince William celebrated Prince Harry's 40th birthday with a social media post paying tribute to the Duke of Sussex

A "brave" Catherine, Princess of Wales, is now cancer-free and is credited with helping the "softening" of Prince William's "grudges" from years past. "My gut feeling is that Catherine was influential in this slight softening of her husband's implacable stand,