Clan Rising
Castle of Almeida today

Portugal · Partial ruin

Castle of Almeida

Castelo de Almeida

The Castle/Fortress of Almeida is a 17th–18th century bastioned fortress built around an earlier medieval castle on the Portuguese border with Spain. Designed and expanded in a Vaubanesque, star-shaped plan, it served as a major frontier stronghold and is classified as a National Monument.

Photograph via Wikimedia Commons

First raised

1641

Its prime

1762

Today

Partial ruin

As it stood in 1762

What Castle of Almeida looked like in its prime.

A 12-pointed, Vauban-style star fortress of grey granite with thick stone-faced scarp walls and earthen, turf-covered ramparts; rounded and angular bastions project at regular intervals forming a deep dry moat around an inner esplanade. Within the star the low remains of an older medieval castle and rubble foundations are visible. The fortress sits adjacent to a town of white-washed houses with red-tiled roofs, and many stone walls show moss and weathering.

Its story

The story of Castle of Almeida.

Border Castle of the Côa, 1039-1510

The lands of Almeida were taken from the Moors in 1039 by Ferdinand I of León and Castile, then passed between León, Moorish and Portucalense forces until 1190, when Pio Guterres, called the Almeidão, reconquered them and gave the village its name. By 1217 the castle is recorded as one of several strong points guarding the Côa border. King Dinis granted a foral on 8 November 1296 and ordered castle and walls rebuilt; a clause of the 1373 peace treaty ceded castle and lands to Castile for three years. John I took Almeida in 1386 with the help of Portuguese nobles in Castile, after its alcalde had sworn fealty to D. Beatriz in the succession crisis of 1383. Manuel I had the walls enlarged, the work finished in 1508; it is one of the 56 border strongholds drawn for Duarte d'Armas's Book of Fortresses of 1509-10.

The Restoration Fortress, 1640-1695

Between 1580 and 1640 the defences began to fall into ruin. After John IV restored the Portuguese crown on 1 December 1640, the first military governor of Beira, D. Álvaro de Abranches da Câmara, ordered modern fortifications; by January 1641 the work was in rudimentary progress and amounted to trenches, and by November the place had become a military square. The twelve-pointed bastioned fortress enclosing the older medieval castle was begun in 1641 to David Álvares's design, in the Vaubanesque manner. Spanish forces attacked the town without success in 1645, and were repelled from the fort on 2 July 1663. In 1661, by the Count of Mesquitela's account, the square was still not fully encircled and had no moat. An explosion in the castle in 1695 killed 40 people and damaged nearby houses.

Aranda's Nine Days, 1702-1764

Between 1702 and 1714, during the War of the Spanish Succession, Almeida began to serve as a garrison and base of operations for Beira; the Lisbon earthquake of 1 November 1755 damaged its walls and destroyed the infantry barracks, and by March 1762 the fortress had largely reached its present dimensions.

Portugal declared war on France and Spain on 18 May 1762; Spain answered on 15 June. The southern arm of the Spanish offensive crossed from Ciudad Rodrigo and besieged Almeida for nine days, from 16 to 25 August 1762, under the Count of Aranda. The Portuguese capitulated on the 25th; the Spanish advance west towards Porto then stalled against 8,000 newly arrived British troops and the Battle of Valencia de Alcántara. Almeida, garrisoned by the Spanish, remained the only major fortress in Spanish hands at the war's end. It was given back to Portugal on 11 April 1763, Field Marshal Francisco Maclean accepting the Spanish surrender in a settlement that returned Cuba and the Philippines to Spain. The Count of Lippe re-examined the batteries on 9 May 1764.

The Magazine Explosion, 1807-1817

The first French invasion, under Jean-Andoche Junot, began on 20 November 1807 and took the fortress without resistance on 13 January 1808. André Masséna opened the third invasion on 15 August 1810, bombarding a fortress held by the British brigadier general William Cox.

On 26 August a chance shell hit ignited the powder magazine: 4,000 prepared charges, 68,000 kilograms of black powder and a million musket cartridges. The blast killed 600 defenders, wounded 300 and razed the medieval castle to the ground. Unable to answer the French guns without powder, Cox capitulated the next day with the survivors and 100 cannon.

On 7 May 1811 Masséna ordered the fortress destroyed so that Anglo-Portuguese forces could not use it; on 10 May the French withdrew through the bastion of São João de Deus, wrecking the artillery as they went, and the Alliance took the place back. On 3 March 1817 William Carr Beresford ordered work on the fort stopped and the fortification mined.

From the Liberal Wars to the Military Museum, 1828-2009

In 1828 the municipal authority sided with D. Miguel, the garrison with D. Pedro; Miguelist forces encircled the fortress by June and it surrendered on 16 July, their troops remaining until 18 April 1834. During the Liberal Wars of 1832-1834 the casemates held 1,500 political prisoners. On 27 August 1887 Almeida was again classified a first-class fortification. In September 1893 it was partly demolished to improve access, and the Superior Commission for War declassified it on 28 June 1895.

The fortress ceased military duties for good in 1927 and was classified a National Monument by decree of 3 February 1928. A military museum opened at the Gate of Cruz in 1980; custody passed to the Centro Region Directorate for Culture on 20 December 2007, and in August 2009 the Historical-Military Museum of Almeida opened in the old casemates.

Step inside

10 places to explore in 1762.

The record describes 10 distinct spots at Castle of Almeida, including 2 interiors: powder magazine (vaulted chamber), bomb-proof barracks under the bulwarks. Create your own photoreal reconstruction and explore every one, more scenes means more rooms, more angles, and more of the place to stand in.

Exterior approach to main bastion and curtain wallBase of the dry moat looking up at the scarpParapet of the Bastion of São PedroRavelin in front of Santa BárbaraSanto António magistral gate and approachInterior parade ground / esplanadeCentral medieval castle remainsPowder magazine (vaulted chamber)Bomb-proof barracks under the bulwarksSite of the former Chapel of Vera Cruz at the rampart

Build Your Own Castle

Recreate Castle of Almeida with AI to explore it.

The artist rebuilds it as it stood in 1762, a photoreal reconstruction that belongs to you alone. Pay with coins, no subscription needed.

Recreate this castle →Defend this castle →

Questions about Castle of Almeida

What is the history of Castle of Almeida?

Castle of Almeida was built in the 17th century as a frontier stronghold facing Spain, around an earlier medieval castle. Its modern fortress works began in 1641 and continued into the 18th century. It was besieged by Spanish forces in 1762, occupied during the Peninsular War, and badly damaged by the 1810 powder explosion.

What is inside Castle of Almeida?

Castle of Almeida contains the low remains and foundations of the older medieval castle, an interior parade ground or esplanade, casemates, and bomb-proof barracks beneath the bulwarks. The casemates occupy a broad underground area divided into twenty rooms and corridors. A vaulted powder magazine is also documented.

Why was Castle of Almeida built, and what was it used for?

Castle of Almeida was built to guard Portugal’s frontier with Spain. Its position, 763 metres above the River Côa valley and seven kilometres from the Castela-Leão plateau, gave the fortress strategic importance. It later served as a garrison and base of operations, and its casemates were used as a prison for political prisoners during the Liberal Wars.

Where is Castle of Almeida?

Castle of Almeida is in Almeida, in the Guarda district, near Portugal’s border with Spain. It stands 763 metres above the valley of the River Côa and seven kilometres from the Castela-Leão plateau.

When was Castle of Almeida built?

Castle of Almeida was first raised in the 17th century, with the modern fortification begun in 1641. The fortress was built around an earlier medieval castle, and its works continued through the 18th century, reaching much of its current dimensions and profile by 1762.

Was Castle of Almeida ever attacked or besieged?

Castle of Almeida was attacked and besieged several times. Spanish forces attacked unsuccessfully in 1645 and 1663, then besieged it for nine days in August 1762; the Portuguese capitulated and Spanish troops occupied the fortress. French forces captured it in 1807 and 1808, and Masséna’s forces took it after the 1810 explosion and capitulation.

What did Castle of Almeida look like in its prime?

Castle of Almeida was a twelve-pointed, Vauban-style star fortress built of grey granite. Thick stone-faced scarp walls and turf-covered earthen ramparts surround a deep dry moat, with six bastions and six ravelins projecting around the inner esplanade. The older medieval castle survives as low remains within the star.

Is Castle of Almeida still standing, or is it a ruin?

Castle of Almeida survives as a partial ruin rather than an intact medieval castle. The 1810 powder explosion razed the medieval castle and damaged sections of the defences, while later alterations and partial destruction changed the fortress. Much of the bastioned layout, walls, moat, gates, casemates and other structures remains visible.

Can you visit Castle of Almeida?

Castle of Almeida can be visited as a historic fortress with public cultural uses. A military museum was inaugurated in the Gate of Cruz in 1980, and the Museu Histórico-Militar de Almeida opened in the former casemates in 2009. The fortress also contains a Centre for Studies into Military Architecture.
All castles of Portugal · Castles of Europe · the best castles in Europe · explore the finished reconstructions.