By Emma Mackenzie Over the years, Princess Kate’s connection with her father-in-law King Charles has gone from strength to strength. Their recent shared health challenges have only solidified their already close bond, royal experts have claimed. Kate’s announcement that she is undergoing a course of preventative chemotherapy took the nation by surprise, and she delivered the news in a moving video message that she reportedly wrote herself. Kate appeared solo in the video message and the monarch immediately threw the full weight of his support behind the Princess of Wales, praising her “for her…