Complex sentence: Don Camillo is the main character created by the Italian writer and journalist Giovannino Guareschi (1908--68), and is based on the historical Roman Catholic priest, WWII partisan and detainee of the concentration camps of Dachau and Mauthausen, Don Camillo Valota.
Split into simpler sentences: Don Camillo is the main character created by the Italian writer and journalist Giovannino Guareschi. He is based on the historical Roman Catholic priest, World War II partisan and detainee of the concentration camps of Dachau and Mauthausen, Don Camillo Valota.