Complex sentence: J. Phillips, "The Fourth Crusade and the Sack of Constantinople", 209 The Crusaders took the city on April 12 and inflicted a savage sacking on Constantinople for three days, during which many ancient and medieval Roman and Greek works were either stolen or destroyed.
Split into simpler sentences: J. Phillips, "The Fourth Crusade and the Sack of Constantinople", 209 The Crusaders took the city on April 12. The crusaders inflicted a horrible and savage sacking on Constantinople for three days, during which many ancient and medieval Roman and Greek works were either stolen or destroyed.