official five-day royal tour of Australia and Samoa. It was the king’s first visit to Australia as monarch.The royal family has been plagued with health woes this year.In January, Kate Middleton revealed that she had underwent abdominal surgery under the advice of doctors.The following month, it was revealed that Charles, 75, had been diagnosed with cancer — just weeks before Princess Catherine, 42, revealed her own diagnosis to the world.The Princess of Wales has since completed chemotherapy, and is set to re-enter more public-facing duties as times goes on, given her recovery remains on track.The mom of three returned to work in September — days after releasing a heartwarming video of her family after completing her cancer treatment..