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Accession and coronation

After emperor Huitzilihuitl 's death, Moctezuma's brother Chimalpopoca ruled for ten years until his assassination. During his reign, Moctezuma and his brother Tlacaelel I led an opposition group of young nobles. This group was militant in nature, and they chose his half-uncle Itzcoatl as the next ruler. Under Itzcoatl, Moctezuma and Tlacaelel were generals in his army.

Moctezuma then was elected to power in 1440 by this group of nobles at the age of 42, after the death of Itzcoatl. He held the title of "Great Speaker". This was distinguished from the title of "Speaker" since he spoke for both the Aztecs and the other peoples under their control.

His coronation was a large ceremony, involving many human sacrifices of prisoners. Moctezuma was seated on a basketwork throne and was crowned by the ruler of Texoco. His crown was a turquoise diadem known as the fire crown.