Considered as one of the most important towers built during the transition from the Middle Ages to the modern age, is in the old manor house on the homestead of Mendes de Vasconcelos, noble family on the rise in Court, linked to the House of Braganza in the second half of the sixteenth century .

The Esporão has its limits since 2 May 1267. The tower was erected by Morgado Álvaro Mendes de Vasconcelos, between the years 1457 and 1490, dates correspond to the time of possession of the squire and his death. Álvaro Mendes was home rider of the Duke of Bragança and governor of the city of Évora.

Former county seat for the first time in 1838 and moved definitely in 1851 for the then Reguengos village of Monsaraz, today the city. Do not confuse Reguengos de Monsaraz with Monsaraz. Are two distinct locations separated by about 15 kilometers.

The Monsaraz village was conquered from the Moors in 1167, the men of Geraldo Fearless. The first charter came to be granted by King Afonso III on 15 January 1276. The Monsaraz Castle played over the centuries the role of the Guadiana sentry, guarding the border with Castile. The village came to administer three parishes: the parish of Santa Maria da Lagoa, Santiago and São Bartolomeu.

The village is surrounded by walls, which to perpetuate the medieval air, accentuate the unique atmosphere of its streets, as if Monsaraz remain frozen in time. Is elliptical.