Tlacotzin was captured and later tortured by Hernán Cortés, along with Cuauhtémoc, to reveal the location of Royal Treasures and gold of the Imperial Family.
Immediately after the execution of Cuauhtemoc, Cortés ordered Tlacotzin be dressed as a Spaniard, given a sword and a white horse as symbols of his new position as Aztec ruler.
Although Tlacotzin was to govern like a tlatoani, his non-noble birth (and lack of connection to the previous royal dynasty) as well as him not going through the traditional investiture ceremony meant that he was regarded by the Nahua subjects as cuauhtlatoani ("eagle ruler"; a non-dynastic interim ruler) instead.
[1] He accompanied Cortés on his three-year expedition, but died in 1526 (8 Tochtli) while on it, of an unknown sickness in Nochixtlan.
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