Best castles around São Sebastião Da Giesteira are found in the central Alentejo region of Portugal, characterized by its authentic landscape of cork and holm oak. While São Sebastião Da Giesteira is known for its fluvial beach, the surrounding area features historical sites. These include medieval castles and fortified structures, offering insights into the region's past. The area is situated near Évora, a UNESCO World Heritage city.
Last updated: October 4, 2026
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Housed in the old church of St. Tiago (18th and 14th centuries) within the castle, the castle's interpretation center presents aspects of Montemor's history since ancient times in a permanent exhibition. The wall paintings from the 17th and 18th centuries are also worth seeing.
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Montemor-o-Novo Castle is located in the parish of Nossa Senhora da Vila, in the municipality of Montemor-o-Novo, in the district of Évora, in Alentejo, Portugal. In a dominant position on the highest hill in the region, the castle originally sheltered the village within its walls, which, as it developed, expanded along the slope to the north. Historical documents confirm that Vasco da Gama finalized his plans for his voyage to India in this castle. Background The earliest human occupation of this site possibly dates back to a prehistoric Romanized fort, according to the abundant archaeological evidence in the region. This was where the Roman roads from Santarém and the mouth of the River Tagus met, continuing via Évora to Mérida. The site would have been fortified for this reason. Centuries later, during the Muslim invasion of the Iberian Peninsula, the name Almançor remained in the region, in the toponymy of the Almansor river. Some authors claim that there was also a Muslim fortification here. The medieval castle During the Christian reconquest of the Iberian Peninsula, the town was conquered by Portuguese forces under the command of D. Sancho I (1185-1211). With a view to repopulating and defending it, the sovereign granted it a Charter in 1203. It is believed that the construction of the medieval castle began at this stage. During the reign of D. Dinis (1279-1325), major reforms were undertaken to the town's defences, including the construction of the town's fence, which was completed in 1365. Once the Avis dynasty was established, the domain of Montemor-o-Novo became a third part of the lordship of Constable D. Nuno Álvares Pereira. Throughout the 15th century, the castle underwent renovation work, carried out by master stonemason Afonso Mendes de Oliveira. In the 15th and 16th centuries, the town reached its greatest prosperity, due not only to regional trade, but also to the fact that the Court remained for long periods in Évora, which made the town the scene of events such as the Cortes of 1495, when King Manuel I (1495-1521) decided to discover the sea route to India. This sovereign granted the town a new charter in 1503. Later, under the reign of King Sebastian (1557-1578), it was granted the title of Notable Town (1563), considering it to be an ancient place with a large population.
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Giraldo Castle, or Geraldo Castle, is located in Nossa Senhora de Guadalupe, in the current parish of Nossa Senhora da Tourega and Nossa Senhora de Guadalupe, in the Municipality of Évora, District of Évora, in Portugal. It is a castro, a proto-historic fortified structure with origins in the Bronze Age or even the Chalcolithic, but with traces of later occupations. It has a subcircular plan and an outer perimeter of 114 meters. The wall that has survived to the present day probably belonged to a period of medieval occupation. Sources from the 15th century refer to the fortification, associating it with the presence of Geraldo Sem Pavor, a warrior who conquered Évora from the Muslims in 1165. It is currently in the process of being classified.
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The site in Nossa Senhora da Tourega e Nossa Senhora de Guadalupe has been continuously occupied since 3000 B.C. and 1000 A.D. It was founded on a castro fortified proto-historic structure, with its origin in the Bronze Age, Chalcolithic, with vestiges from older settlements. During the Middle Ages it was sporadically re-occupied and reconstructed. Records from the 15th century indicate that the castle was associated with Giraldo Sem Pavor, a warrior who conquered Évora from the Muslims in 1165. Today the site is being analyzed for classification.
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Former Chapel of São Tiago, today it is a museum space: Castle Interpretation Centre. Open every day, except Mondays.
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The Clock Tower is currently the symbol of the city of Montemor-o-Novo. Built during the reign of King Dinis (13th – 14th centuries), it became the castle’s main defence tower. It underwent major renovations in the 16th century, when the Guard House was incorporated and a bell tower was installed to hold the clock bells. The clock had three bronze bells: one for the hours, another for the half-hours and the last for the quarter-hours. The main access door to the castle is located under the Clock Tower. It is called the town or Santarém gate. Classification: MN – National Monument, Decree no. 38 147, DG, 1st series, no. 4 of 5 January 1951 *1 / ZEP / “Non-built” zone, DG, 2nd series, no. 177 of 28 July 1962
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Montemor-o-Novo Castle is the original site of the medieval town of Montemor-o-Novo. This castle was conquered from the Moors by order of D. Afonso Henriques, and its current walls were built during the reign of D. Dinis. It was gradually abandoned by the population from the 15th century onwards, and today it preserves important testimonies of the medieval and modern history of Montemor-o-Novo, such as sections of the wall, the Paço dos Alcaides, the Church of Santiago (currently the Castle Interpretation Centre), the Church of Santa Maria do Bispo, the Clock Tower, the Porta da Vila, the Porta do Anjo, the Torre da Má Hora and the Convento da Saudação. (Source: https://www.feriasemportugam.com)
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While São Sebastião Da Giesteira itself is known for its fluvial beach, the surrounding region offers historical fortifications. The most notable include Montemor-o-Novo Castle, a significant medieval site, and Giraldo Castle, which has proto-historic origins.
Montemor-o-Novo Castle is the original site of the medieval town. Its walls, built during the reign of D. Dinis, are largely preserved, and parts can be walked. Key features include the iconic Clock Tower, the Church of Santa Maria do Bispo, and the Castle Interpretive Center.
Giraldo Castle is a site with deep historical roots, continuously occupied since 3000 B.C. It originated as a fortified proto-historic structure from the Bronze Age, with later medieval re-occupations. It's associated with the warrior Giraldo Sem Pavor and is currently undergoing classification.
Yes, the Castle Interpretive Center, located within Montemor-o-Novo Castle, is considered family-friendly. Housed in the old Chapel of São Tiago, it offers a permanent exhibition detailing Montemor's history from ancient times, which can be engaging for all ages.
At Montemor-o-Novo Castle, you can explore medieval architecture, understand its role in the region's defense, and learn about its gradual abandonment. The Castle Interpretive Center provides a comprehensive overview of the town's history. Giraldo Castle offers a glimpse into proto-historic fortifications and their evolution through the Bronze Age and medieval periods.
The area around São Sebastião Da Giesteira and its castles is excellent for various outdoor activities. You can find numerous routes for road cycling, mountain biking, and general cycling. For detailed routes, explore the Road Cycling Routes around São Sebastião Da Giesteira, MTB Trails around São Sebastião Da Giesteira, and Cycling around São Sebastião Da Giesteira guides.
Yes, Montemor-o-Novo Castle offers impressive views from its preserved walls. Similarly, Giraldo Castle, situated on a historical site, also provides scenic vantage points of the surrounding landscape.
The Alentejo region, where these castles are located, experiences hot summers. Spring (April-May) and autumn (September-October) generally offer the most pleasant weather for exploring historical sites and enjoying outdoor activities, with milder temperatures and less intense sun.
At Montemor-o-Novo Castle, pay attention to the well-preserved medieval wall sections, the distinct Clock Tower which served as the main defense, and the remains of the Paço dos Alcaides. The Castle Interpretive Center also features notable 17th and 18th-century wall paintings.
At Montemor-o-Novo Castle, the castle wall is largely preserved, and short sections are accessible for walking, offering unique perspectives of the complex and the town.
The Clock Tower is a prominent symbol of Montemor-o-Novo. Built during the 13th-14th centuries, it was the castle's main defense tower. It also houses the main access door to the castle, known as the town or Santarém gate, and once contained three bronze bells for timekeeping.


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