Prince Harry arrived in London on Tuesday in response to the cancer diagnosis of his father, King Charles III. According to the New York Post’s Page Six, Harry made a “quick visit” to Clarence House, where Charles and Queen Camilla live. On Monday, he had been spotted at the Los Angeles International Airport, the outlet reported. Shortly after the Duke of Sussex’s visit, Charles and Camilla were seen driving from their residence to Buckingham Palace, according to The Guardian. The king waved to those he passed along the way. Not long after their arrival, a helicopter took off from the palace a…