Best castles around Montemor-O-Novo offer a journey through centuries of Portuguese history in the Alentejo region. The area is characterized by its hilltop locations, providing panoramic views of the surrounding landscape. These historical sites reflect various architectural evolutions and played crucial roles in the kingdom's defense. Visitors can explore preserved ruins and ancient ramparts.
Last updated: July 9, 2026
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Place where the Peace Treaty of Alcáçovas was signed in 1479, between the kingdom of Portugal and the kingdom of Castile.
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The Arraiolos Castle, or Paço dos Alcaides, is a 14th century castle located in Central Alentejo. Although it is not the largest castle in the region, it has a curious and almost unique peculiarity in the world, which makes it stand out in an area of the country with so many buildings of this type: its layout is circular architecture. For those who arrive in the town of Arraiolos (or pass through the surrounding region) it is impossible not to see the Arraiolos Castle, which stands proudly in the landscape, at the top of Monte de São Pedro. Historically, the Arraiolos Castle has had several roles. It was built in 1306 by D. Dinis, housing the population within its walls. Later it was the county seat of D. Nuno Álvares Pereira, 2nd Count of Arraiolos, who lived here for many years. Due to the cold and wind resulting from its location, it ended up losing many of its inhabitants. In an attempt to keep some of the population inside the walls, they began to be closed every night after the bell rang, which continued for several decades. However, the population eventually spread out along the surrounding slopes and three centuries after it was built, the Castle began to be looted for materials, eventually falling into ruins. It was during the reign of King John IV that it underwent major renovation work, but it eventually fell into ruins again, worsened by the earthquake of 1755. Between 1959 and 1963, it was partially restored by the State, achieving the appearance it still has today.
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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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Paço dos Henriques (Henriques’s Palace), which is now owned by the Portuguese State and has been classified as a Building of Public Interest since 1993, belonged to the last lords of the town of Alcáçovas. According to tradition and local belief, this was once a royal palace, Ordered to be built by the Portuguese king Dom Dinis. This is a Place of Peace because it was there that took place the signature of the Alcáçovas-Toledo Treaty (also known as Alcáçovas’s Peace), that ended the Sucession War of Castile (1475-1479), where Afonso V of Portugal renounced the throne of Castile and King Fernando of Castile renounced the throne of Portugal. This Treaty also solved some issues related with the “new lands” discovered in the Atlantic Ocean, dividing them formally between Portugal and Castile. This explains the reason why this building is so important and emblematic, not only for Alcáçovas’ history, but for Portugal and the rest of the world.
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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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You can easily spend several hours exploring the various points of interest within the castle grounds, including the ancient ramparts, the ruins of the Paço dos Alcaides, and the Church of Santiago, which houses the Interpretation Centre. The panoramic views from the hilltop also invite a longer stay.
The spring and autumn months offer the most pleasant weather for exploring the Alentejo region and enjoying clear views from the castle's viewpoints. The mild temperatures are ideal for walking around the historical sites.
Yes, the region offers options for families. The Henriques Palace is categorized as family-friendly. While not explicitly stated for all, exploring the open grounds and ramparts of Montemor-o-Novo Castle and Arraiolos Castle can also be an engaging experience for children.
Montemor-o-Novo Castle is deeply intertwined with Portuguese history. It was conquered from the Moors by D. Afonso Henriques and played a crucial role in defending the kingdom. Notably, in 1496, King Manuel I made the pivotal decision to order Vasco da Gama's expedition to India from this very castle, marking the beginning of Portugal's Age of Discoveries.
The area around Montemor-o-Novo offers various outdoor activities. You can find numerous hiking trails, such as the 'Megalithic Circuit of Évora' or the 'Almendres Cromlech loop'. For cycling enthusiasts, there are MTB trails and road cycling routes available. You can explore more options on the Hiking around Montemor-O-Novo, MTB Trails around Montemor-O-Novo, and Road Cycling Routes around Montemor-O-Novo guides.
Absolutely. Beyond Montemor-o-Novo Castle, you should consider visiting Arraiolos Castle. It's famous for its unique circular architecture, a rare feature globally, and offers expansive views from its hilltop position.
There is parking available near the castle complex. Visitors often access the castle through the Clock Tower, which serves as the main access gate, indicating proximity to parking facilities.
The castle's hilltop location provides breathtaking panoramic vistas of the surrounding Alentejo landscape. From the ramparts and especially from the Clock Tower, you can enjoy privileged views, including the ruins of the Paço dos Alcaides within the castle grounds.
Visitors appreciate the castle's historical significance and the opportunity to walk along sections of its ancient, well-preserved walls. The impressive facility allows you to trace the footsteps of historical figures and soak in the historical atmosphere, all while enjoying the panoramic views.
Yes, within the castle grounds, the Church of Santiago now houses the Interpretation Centre of Montemor-o-Novo Castle. This center provides a multimedia journey through the castle's rich history, offering deeper insights into its past.
While there are no specific cafes mentioned directly within the castle grounds, the town of Montemor-o-Novo itself offers various cafes, pubs, and restaurants where you can find refreshments and meals after your visit.
The Clock Tower is a prominent symbol of Montemor-o-Novo. Built during the 13th-14th centuries, it served as the castle’s main defense tower and houses the main access gate to the castle complex, known as the Porta da Vila or Santarém gate. Ascending it offers excellent views.


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