Tlacaelel/ Tlakaelel

Tlacaelel I (1397 – 1487) ( , "Man of Strong Emotions," from "tlācatl," person and "ēllelli," strong emotion) was the principal architect of the Aztec Triple Alliance and hence the Mexica (Aztec) empire. He was the son of Emperor Huitzilihuitl and Queen Cacamacihuatl, nephew of Emperor Itzcoatl, father of poet Macuilxochitzin, and brother of Emperors Chimalpopoca and Moctezuma I.

During the reign of his uncle Itzcoatl, Tlacaelel was given the office of Tlacochcalcatl, but during the war against the Tepanecs in the late 1420s, he was promoted to first adviser to the ruler, a position called Cihuacoatl in Nahuatl, an office that Tlacaelel held during the reigns of four consecutive Tlatoque, until his death in 1487.