The Cartuja Monastery has become an essential centre for the local horse breeding since it was founded at the end of the fifteenth century. Cartujan monks bred a herd of horses for three centuries which coincided with the most magnificent period in the reign of Spain. Later on, that herd of horses became one of the most famous and appreciated equine animals in the world. The careful stockbreeding work was carried out in a nice Renaissance building, on some lands with an exceptional climate and fertility for the production of the universal wine of Jerez, Sherry. Due to the Independence War, monks´ works were interrupted at the beginning of the nineteenth century and it coincided with prosperous years for Spain and for these special horses. After monks fled La Cartuja Monastery in 1810, the presbytery Pedro Jose Zapata saved the legendary herd from an irreparable break-up. He bought the best 60 mares and 3 horses and hid them in a territory in Cadiz Province called “La Breña del Agua”. Such horses were the origin of what is currently known as the Cartuja - Hierro del Bocado Stud Farm. Bocado Branding iron was designed by Zapata so that animals coming from Cartuja Stud Farm could be branded. This iron named the prestigious livestock. Don Pedro and his brother Don Juan Jose took charge of the herd of horses up to Don Juan´s death. Then, his son ran it up to his death in 1854. Later on, his widow, Doña María Romero, took charge of the livestock. After all the adversities of the herd since the previous century, nowadays Cartuja horses have stably settled in a large piece of land called the Fuente del Suero. Besides, they form part of the national wealth as Spain takes care of the preservation and the genetic richness diffusion of these unique horses.