Complex sentence: He was involved in the final struggle between the Incas and the Chancas (of modern-day Apurímac, west of Cuzco)--unfortunately, the chroniclers differ on whether he was a hero or a coward.
Split into simpler sentences: He was involved in the final struggle between the Incas and the Chancas (of modern-day Apurímac, west of Cuzco). Unfortunately, historians differ on whether he was a hero or a coward.