Princess Kate Fed Up With Prince William and Prince Harry’s Feud, Now ‘Loudly Voicing Her Opinion’

Princess Kate has tried to let Prince William and Prince Harry sort out their differences on their own, but a source tells Star she’s losing patience with the brothers’ long-running feud.

“There’s been zero progress,” notes the source. “So her instinct is to now do everything she can to fix things.”

According to the source, the future queen, 44, has been turning up the pressure on her husband, also 44, behind the scenes to extend an olive branch.

“She is very loudly voicing her opinion again — which is that this ugliness can’t go on,” shares the source. “It’s untenable.”

Her hope, adds the source, is that the siblings can patch things up by the holiday season, or at the very least, before the 30th anniversary of Princess Diana‘s death on August 31, 2027.

“The expectation is that William and Harry will do something together to mark the occasion, and Kate very much wants them to honor that,” the source notes. “As a mother, it pains her to think of how devastated Diana would be that her only two children have gone years without speaking. She’s not holding back on telling William as much, either.”

The Princess of Wales, who shares kids Prince George, 13, Princess Charlotte, 11, and Prince Louis, 8, with the future king, “has also warned William that his feud with Harry sets a terrible example for the children,” spills the source. “She isn’t denying that Harry has changed. But Kate’s not suggesting they need to be best friends.”