King Charles III was at his private residence in Balmoral when he was diagnosed with an enlarged prostate. He will attend hospital next week to be treated for an enlarged prostate. It is believed he is staying at his private home, Birkhall, on the Balmoral estatem where he received the diagnosis today. It comes after Kensington Palace separately said at 2pm that the Princess of Wales was being treated in hospital after undergoing successful abdominal surgery. She was not rushed for hospital and her condition was not something that developed over the weekend, according to reports.