Complex sentence: De León marched to a Maya city named Quezalli by his Nahuatl-speaking allies with a force of fifty Spaniards; his Mexican allies also referred to the city by the name Sacatepequez.
Split into simpler sentences: De León marched to a Maya city named Quezalli by his Nahuatl-speaking allies with a force of fifty Spaniards. The Mexican allies also referred to the city by the name Sacatepequez.