One of the best known episodes of the Spiritual Conquest of Mexico is that of the Niños Martires.
The story goes that shortly after the conquest, in 1527, Axotécatl, one of the Four Lords of Tlaxcala—allies of Cortés in the defeat of the Aztecs—sent his three sons to be educated in the Franciscan monastery of Tlaxcala.
On their return, the young men set about smashing idols and reproaching their father for his polygamy and excessive drinking. The enraged lord beat his son Cristóbal and had him burned him to death. The other two boys, Antonio and Juan, fled but continued their preaching and iconoclastic ways, until they too soon suffered a martyr's fate.