In 153 a. Of C., in its surroundings settled the Roman camp governed by the consul Nobilior, that had an important paper during the siege to Numancia.
Almazán means in Arabic “walled plaza”, appropriate name for a place very disputed between Christians and Arabs; Reconquered in 1068, the Muslims recovered it, and until the year 1098 the king Alfonso VI does not consolidate its control and does the first repopulation. In 1109 who repopulated with Aragonese was Alfonso I of Aragon (son-in-law of Alfonso VI for having married his daughter, Queen Urraca of Castile) who also gave the name of Placencia; But that king the Villa was reintegrated in the kingdom of Castile recovering its Arab name.
There, in 1158 King Sancho of Castile “the Desire” -the shortest in history, since he ruled only twelve months- donated the castle of Calatrava (very close to Ciudad Real) to the Cistercian monks, creating the Order of Cavalry Of Calatrava.
In 1289 the infant Alfonso de la Cerda conquers Almazán to its rival the king Sancho IV of Castile; Established its “capital” there with a Court supported by the Aragonese. There he remained with his faithful vassals until 1305, when he returned it to the son of his rival, King Ferdinand IV.
In 1369, when he was proclaimed King Henry II of Trastámara, he gave Almazán as a prize to his main champion: the French gentleman Bertrand Du Guesclin (who was said to have tripped Pedro I during the fight in which he was killed by his stepbrother Enrique). Du Guesclin would sell it later.
In 1375 there the deposed king Jaime IV of Majorca died; For Almazán was assigned as a residence by the Castilians after being defeated by his relative, King Pedro IV of Aragon. That same year Pedro IV the Ceremonious one will go to sign the “Peace of Almazán” with Enrique II of Castile.
In 1388 the town was part of the dowry given to Catherine of Lancaster – granddaughter of the murdered Pedro I of Castile – to marry with the infant Enrique – grandson of the assassin of that one, Enrique II -; An agreement by which both became the first princes of Asturias. The couple would reside in Almazán for some time.
King Henry III in 1395 gave Almazán to Don Juan Hurtado de Mendoza, giving rise to the Señorío de los Mendoza. Between December of 1462 and January of 1463 there resided with its Court the king Enrique IV of Castile. And there he danced with his “sad queen” -Juana de Portugal, suspected of adultery-the French ambassador; So impressed he was left with the experience, that he made the solemn vow not to return to dance with another lady in his whole life.
Prince Ferdinand of Aragon passed by incognito in 1469 during his trip to marry Isabel in Valladolid; Returning Fernando like king in 1474; In 1496 the kings kept their itinerant court there for three months. In 1512 Diego Laínez was born, who would be one of the protagonists of the Council of Trent and II General of the Jesuits.

Door of the Mercado
In 1648 the writer Tirso de Molina died there and was buried in the convent of La Merced. The 10 of July of 1810 was subjected to a wild sacking and then burned by the French, destroying 166 buildings. In spite of this it was the base from which the general Jose Joaquin Durán prepared the reconquest of Soria. Until 1811 the town was a jurisdictional manor of the Marquis de Almazán and the Count of Altamira, one of the titles with more properties in Spain.