Moctezuma II Becomes Ruler of Tenochtitlan

Around 1502, Moctezuma Xocoyotzin was chosen as tlatoani, or ruler, of the island capital of Tenochtitlan and head of the Aztec Empire. Before taking power, he had trained in the calmecac for nobles, risen to the high military ranks of tlacatecuhtli or tlacochcalcatl, and served as the primary priest at the temple of Huitzilopochtli. Most historical records place his formal investiture in 1502, though some sources, including the Stone of the Five Suns inscription, suggest that ceremonies took place in 1503. He succeeded his uncle Ahuizotl to lead a powerful confederacy whose domain stretched across central Mesoamerica.

Upon assuming office, Moctezuma restructured the imperial government to concentrate authority directly around himself. He reorganized the realm into thirty-eight administrative divisions and dispatched imperial officials supported by military garrisons to enforce laws, collect tribute, and arbitrate local disputes. Within Tenochtitlan, he departed from the meritocratic customs of previous rulers by barring commoners from working in the royal palaces or holding senior government posts. While this division between the pipiltin nobility and macehualtin commoners widened social boundaries, he also demanded that provincial nobles reside permanently in the capital to prevent regional challenges to his rule.