The Last Aztec Part 1 Booker Prize winner DBC Pierre returns to the Mexico of his youth to explore the downfall of one of the world's greatest civilisations -- the Aztecs ruled by the emperor Moctezuma II who were defeated by a small force of Spaniards under Hernán Cortés. In the early 16th century, the Aztec empire was at the height of its power. The emperor Moctezuma II (also known as Montezuma) ruled from the great imperial city of Tenochtitlan in the Valley of Mexico -- site of present-day Mexico City -- and collected an unending stream of tribute from neighbouring city-states. Aztec armies were feared. Hundreds of thousands of humans were sacrificed to Aztec gods in elaborate rituals.