Catherine, Princess of Wales is reportedly set to will rely on her “strong” relationship with sister Pippa and her family as she goes through preventative cancer treatment. The royal mum-of-three, 42, dramatically stepped back into the public eye on Friday (22.03.24) with a video message in which she announced she was having chemotherapy after doctors discovered cancer in her body following her major abdominal surgery in January, which left her hospitalised at The London Clinic for two weeks and out of the spotlight as she recovered. Royal commentator Richard Fitzwilliams, 74, has now said Cat…