By Russell Myers King Charles is planning to lead the Royal Family on Easter Sunday at their annual church service in a public show of unity. Royal sources confirmed Charles, who is fighting cancer after being diagnosed in February, is “hoping to make” the journey to St George’s Chapel in Windsor next weekend to reassure the public amid incredibly testing times for the royal family. It comes as the King spoke of his pride in his “beloved” daughter-in-law the Princess of Wales for her “courage” in speaking about her treatment after her own cancer diagnosis. The Sunday Mirror can also exclusivel…