Prince William and Catherine, Princess of Wales, have reportedly “made their feelings clear” to an ailing King Charles III amid royal rebel Prince Harry’s upcoming visit to Britain. With the Spare author’s Monday, September 30, appearance at the WellChild Awards “set to create more drama,” the future king and queen decided to rally around His Majesty. The Prince and Princess of Wales spent time at the Balmoral estate in Scotland earlier this month, which led royal reporter Jennie Bond to share, “Their visit underlines how important they feel it is to spend time with Charles. It’s been a few we…