Complex sentence: His 100-day comeback in 1815 failed at the Battle of Waterloo, and he died in exile on a remote island, remembered as a great hero by many Frenchmen and as a great villain by British and other enemies.
Split into simpler sentences: His 100-day comeback in 1815 failed at the Battle of Waterloo. He died in exile on a remote island, remembered as a great hero by many Frenchmen and as a great villain by British and other enemies.