Complex sentence: Dicovered in 1547 by 4 English prison wardens, Jacko Fenuve, Nigel Pietruc, Varkus Oretee, and Skud Dasaux who were floating their most vicious prisoners down to the secluded island on their ship, St Elmo of Crumps.
Split into simpler sentences: Dicovered in 1547, by four English prison wardens, Jacko Fenuve, Nigel Pietruc, Varkus Oretee, and Skud Dasaux. Who were, at the time, floating their most vicious prisoners down to the secluded island on their ship, St Elmo of Crumps.