Complex sentence: Not much is really known about his early life other than he is a class purple or (2) clone class 2 clones usally have a life span of 19 months but 17 out lived his life expectancy by many years.
Split into simpler sentences: Not much is really known about his early life other than he is a class purple or (2) clone (class 2 clones usally have a life span of 19 months). But 17 out lived his life expectancy by many years.