WILLIAM TELLS HARRY YOU'RE NOT WELCOME!

The Prince of Wales has given his brother a firm warning to stay away from his wife and kids

It's the question on everyone's lips: Will Prince Harry visit his sick sister-inlaw, the Princess of Wales, while in London this week? But the decision, it seems, has been made for him.

Woman's Day has been told the Prince of Wales has issued his estranged brother who is visiting the UK to mark the 10th anniversary of the Invictus Games - a warning to stay away from Kate, 42, and their three children, Prince George, 10, Princess Charlotte, eight, and six-year-old Prince Louis.

Having spent the past few months caring for his wife and kids, while also stepping in for his sick father, William, 41, has been under immense strain lately and, in his eyes, a visit from Harry, 39, is the last thing his family needs after Kate revealed her cancer diagnosis in March.

"They have so much to focus on her treatment, the children and even the King's health so he's not letting Kate expend any more energy on Harry," says a royal insider.

"He will never forgive Harry for everything he has said about Kate, especially in his memoir, when she simply adored him. The betrayal deeply hurt Kate and William can't handle seeing her in any further pain.