Top 10 Castles in Portugal
Portugal is a small country whose castle heritage is disproportionate to its size, because it was created by the military act of reconquest. Every castle here either defended the emerging Portuguese kingdom against the Moors in the 12th and 13th centuries, or was itself a Moorish fortification that the Portuguese captured, adapted, and made their own. The Templar and Hospitaller orders played a central role in the military programme of the Portuguese Crown, and their marks are on several of the most significant castles in the country. All ten are on the map.
1. Castelo dos Mouros, Sintra (UNESCO)
The Moorish Castle at Sintra, on a granite spur above the town, was built by the Moors in the 9th and 10th centuries on Roman foundations and taken by Afonso Henriques, the first king of Portugal, in 1147. The granite walls following the ridge line, with two towers and a cistern within the enclosure, are maintained as a managed monument on the UNESCO Cultural Landscape of Sintra. They are visually legible from the town below and provide the context within which the later 19th-century palaces of Sintra — Pena, Monserrate — were deliberately inserted as Romantic counterpoints. The setting, above the clouds that form on the Serra de Sintra, is unlike any other castle experience in Portugal.
2. Pena Palace, Sintra (UNESCO)
Pena Palace is not a medieval castle but a 19th-century fantasy built on the ruins of a 16th-century Hieronymite monastery on the highest peak of the Serra de Sintra. Ferdinand II of Portugal commissioned the German architect Baron Wilhelm Ludwig von Eschwege to design it from 1838; the result is an eclectic mix of Romanesque, Manueline, Moorish, and Renaissance elements painted in vivid ochre and terracotta. Its importance in the Sintra landscape — it is the building that made Sintra a UNESCO site in 1995 — is as a defining statement of Romantic historicism applied to Portuguese national identity.
3. Obidos Castle, Estremadura
Obidos, a completely walled medieval town above the Obidos lagoon in Estremadura, has the most intact medieval fortification system in Portugal: the curtain walls, 1.5 kilometres long, walk entirely around the hilltop town. The castle at the northern end was built in the 12th century after the Christian reconquest of the town in 1148 and extended under Dinis I in the early 14th century. The tradition of Portuguese kings presenting the town to their queens as a wedding gift — begun by Afonso II in 1228 and maintained by multiple subsequent monarchs — gave the town its epithet "wedding gift town." The castle is now a pousada (state heritage hotel).
4. Guimaraes Castle, Minho (UNESCO)
Guimaraes Castle, in the birthplace of Portugal, is where Afonso Henriques is traditionally said to have been born around 1109 and from where he launched the campaign that established Portugal as an independent kingdom. The castle's ten square towers and curtain wall date from the 10th century; the keep (Torre de Menagem) was added by Dinis I in the early 14th century. The city of Guimaraes is UNESCO World Heritage Site since 2001 for its exceptionally complete medieval urban fabric. The castle is the centrepiece and the most visited monument in the north of the country.
5. Almourol Castle, Ribatejo
Almourol, built by the Templar Grand Master Gualdim Pais from 1171 on a granite island in the Tagus river, is one of the most pictorially dramatic castles in Portugal: a white tower and curtain wall rising from a small rocky island with no bridge, accessed only by boat. The Templars built it as part of their frontier system protecting the nascent Portuguese kingdom's eastern border; it passed to the Order of Christ after the Templars were dissolved in 1314. It is maintained as a national monument and is accessible by boat from the banks of the Tagus.
6. Marvao, Alentejo
Marvao, a fortified village and castle on a granite outcrop at 862 metres in the Serra de Sao Mamede above the Spanish border, was held by Ibn Maruwan (from whose name the town takes its name) in the 9th century and taken by the Portuguese in the late 12th century. The castle, built by Dinis I in 1299 and extended in the 17th century, commands an extraordinary view across the Alentejo and into Extremadura. The village within the walls is still inhabited. The sense of altitude and isolation is intense; the site receives far fewer visitors than its quality warrants.
7. Monsaraz, Alentejo
Monsaraz, a fortified hilltop village above the Guadiana valley in the Alentejo — now on the edge of the Alqueva reservoir, the largest artificial lake in Europe — holds a castle built in the late 13th century under Dinis I and later Beatriz of Castile, in the same Dionysian fortification programme that produced Marvao and Obidos. The village within the walls has a permanent population that has been declining for decades; the experience of a still- inhabited medieval walled town is increasingly rare. The cistern-arena — a cistern converted to a bullring in the 17th century — is unique.
8. Tomar (Convento de Cristo), Ribatejo (UNESCO)
Tomar is the headquarters of the Templar Order in Portugal, founded by the Grand Master Gualdim Pais in 1160 and passed to the Order of Christ in 1319 after the Templars' dissolution. The Charola, the Templars' circular church modelled on the Rotunda of the Holy Sepulchre in Jerusalem, dates from the 12th century; the Manueline chapter house window, added under Manuel I between 1510 and 1513, is the defining monument of the Manueline style — a riot of marine motifs, armillary spheres, and naturalistic carving of extraordinary quality. UNESCO World Heritage Site since 1983.
9. Estremoz, Alentejo
Estremoz Castle, in the centre of the marble-rich Alentejo, was built by Afonso III in the 13th century and extended by Dinis I. The Torre das Tres Coroas (Tower of Three Crowns), 27 metres, was built between 1258 and 1325 and named for the three kings who contributed to its construction. Queen Isabel of Aragon — canonised as Saint Isabel of Portugal — died in Estremoz Castle in 1336 having given away her possessions to the poor while waiting here. The upper castle and tower are now a pousada; the white marble of the construction is a specifically Alentejano material choice.
10. Castelo de Sao Jorge, Lisbon (UNESCO)
Sao Jorge, on the highest hill of Lisbon, occupies the site of the original Moorish Alcacova that was taken by Afonso Henriques with Crusader assistance in 1147 — the founding military act of the Portuguese capital. The current walls date from the 14th century under Joao I, who used it as a royal residence. After the 1755 earthquake destroyed much of Lisbon, the castle became a military barracks; the 20th-century excavations recovered significant Moorish and earlier layers. The viewpoint from the walls over the Tagus estuary is the most comprehensive overview of Lisbon's topography.
Planning a Portugal castle trip
The Sintra-Obidos-Almourol triangle is manageable in two days from Lisbon. The Alentejo circuit (Evora, Marvao, Monsaraz, Estremoz) requires a base in Evora over three days. Tomar and Guimaraes are best as standalone day trips from Lisbon and Porto respectively. Find every castle on the map.