The Criollo horse is the direct descendant of the horses brought to the Americas by the Spanish. Since the moment the first Spanish horses were brought to the Americas until the conformation of the Criollo there is a long history that covers many centuries during which the adaptation to the environment constitutes the basis upon which the Criollo horse has built its roots.
When the Spanish horse was left free in this new habitat, it had to adapt itself to the new conditions, protect itself against the threatening dangers and carry on reproduction under the law of survival of the most apt.
The Azteca breed was the first breed developed in Mexico. Horses of Spanish blood have always be favored in Mexico and in 1972 development of a breed using Andalusian, Quarter Horse and Criollo began. Don Antonio Ariza, President of the house of Pedro Domecq worked with tenacity and patience, and managed, with the help of many other individuals, to realize the dream that Mexico have its own national breed. The Mexican Department of Agriculture granted official registry to the Azteca breed on November 4, 1982.