When the origins of the monarchy of the ancient Mexicans are traced, some historians assert that they descend from the legendary tradition of the Toltecs, we speak of the city of Culhuacan as the city of origin, since Acamapichtli, the founder of the dynasty was That city. Some sources assert that the first Tlatoani (king) was the adopted son of the last lord descendant of the lineage of Quetzalcoatl, Ce-Actl Topiltzin. Others claim that he was the distinguished bloodline and that he was an official blood relative. Although there was also news that power and lineage was transmitted by the female line, the truth was, it was a family dynasty like Acamapic, who was also named, did not name his successor when he said that people had to choose Who considered it better. The transfer of monarchical power acquired different characteristics, since the throne was not assumed by the purity of the blood or by inheritance, instead was decided by an electoral council.
At first the heads of the family met in the square to make their cheers. Then a council was formed similar to the senate constituted by four electors corresponding to the districts or calpullis as they were called. The number was increased to six when the other kings, the king of Texcoco and the king of Tacuba, united in a triple alliance at the beginning of century XVI, the electoral council increased its number to a hundred. The Tecuhtlatoques, thirteen supreme dignitaries, the Achcacauhtin, officials and representatives of different neighborhoods, retired delegates and active in the army and Tlanamacazque, high priests, there was no scrutiny but instead the oligarchy argued among them and made a decision.