San Esteban de Gormaz is a municipality in the province of Soria in the autonomous community of Castile-Leon, Spain. Its population is approximately 3,500. The town is located in the Wool Route and the Way of the Cid, the route of the exile of the Cid.
The village lies between the bank of River Duero and a small hill, 70 km east of the capital of the province (Soria), 28 km from Tiermes and 45 km from Aranda de Duero.
The Arab Gormaz Castle is located nearby.
The zone where it is located has known settlements from prehistory.
Historically, both Roman and Arab establishments of which some heritage is conserved.
The Arabs considered it a very important Christian center. This caused it to become a military objective for 200 years, from the beginning of the construction of its castle by the Arabs in the ninth century (at which time the population was called Castromoro) until it fell finally into the hands of the kingdom of Castile. The innumerable fights that took place this time throughout were the reason so that this place located in the border of Castile consolidated as an urban nucleus.
In 1187 the first Cortes of Castile were celebrated in the town and its importance continued growing until the end of the thirteenth century, when it reached its maximum splendor. By this date it had 3000 inhabitants (120 knights), four parishes and two monasteries located outside the limits of the village.