Princess Kate will be “reassured and optimistic” at Adelaide Cottage with Prince George, Princess Charlotte and Prince Louis, a royal commentator has claimed. The Princess of Wales was hospitalised for abdominal surgery in January this year, and since announced she is undergoing a course of preventative chemotherapy. This has resulted in Kate, 42, stepping back from royal duties to recuperate in private with her husband, Prince William, and their three children. The family of five lives in Adelaide Cottage on King Charles’s Windsor Estate, near Lambrook School which George, 10, Charlotte, eigh…