What was the Aztec's last ruler's name?

Answer 1

The last fully independent ruler of the Aztecs was Cuauhtemoc, who surrendered to the Spaniards and was later executed by Cortes. After the conquest there was a transitional period where their rulers were given both the Aztec title "tlatoani" and the Spanish title "gobernador" (governor). The last of these rulers was don Luis de Santa Maria Nanacacipactzin, and he died in 1565. Afterwards they were governed solely by "gobernadores", who no longer ruled for life like tlatoanis or inherited their positions based on ancestry. But descendants of the old dynasty continued to play a significant role -- for example, the second governor after Nanacacipactzin was married to the daughter of one of Nanacipactzin's predecessors.

Answer 2

Montezuma II

Answer 3

Daniel Sullivan