The town of San Martín de Pusa is located in the center of the old manor. However, its foundation was made by the residents of the old and nearby town of El Pozuelo.
Initially. This town was known as "El Pozuelo" due to a well that supplied them. With the repopulation, the new town arises further west of the previous one, which will take the name "San Martín de Valdepusa" after a church that was built for devotion to San Martín Obispo and for the lord of Valdepusa, owner of the land. In 1517 the name "Pozuelo" was lost, maintaining that of the Saint.