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Castle of Seda

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Castle of Seda
Castelo de Seda
Portalegre, Alto Alentejo, Alentejo in Portugal
Coordinates39°11′35.163″N 7°47′13.221″W / 39.19310083°N 7.78700583°W / 39.19310083; -7.78700583Coordinates: 39°11′35.163″N 7°47′13.221″W / 39.19310083°N 7.78700583°W / 39.19310083; -7.78700583
Site information
OwnerPortuguese Republic
Open to
the public
Site history
MaterialsSchist, Limestone, Mortar

The Castle of Seda (Portuguese: Castelo de Seda) is a medieval castle located in the civil parish of Seda, in the municipality of Alter do Chão, in the Portuguese district of Portalegre.


Between the Roman and Muslim occupations there existed a castle fortification by the name of Arminho on the site.[1] The medieval settlement was founded on a Romanized castro, which was a 2nd century presence conditioned by its position over the Ribeira de Seda, identifiable by milestone encountered in the region, among other vestiges.[2]

In 1160, D. Afonso Henriques conquered the settlement from the Moors.[1][2] The construction of the walls likely began following its conquest, along a frontier which was still influenced skirmishes and battles.[2] Following their defeat, the location was donated to the Knights Templar, but in 1271, Seda was transferred to the Knights of Avis; Friar Simão Soeiro, Master of the Order, received a new foral for its development.[2]

On 18 May 1271, a foral (charter) was conceded to Father Simão, Master of Avis, which was later (30 October 1427) validated by King D. John I and reissued on 1 September 1510, by King D. Manuel I.[1]

In the 1527 "Numeramento", it was the seat of the municipality, during the jurisdiction of the Order of Avis, when there were 184 residents.[1]

The municipality was extinguished in 1836, with the administrative reforms.[1]

In 1970, there was a collapse of part of the walls and corbel of the fortification. As a result, in 1971, the Direcção Geral dos Edifícios e Monumentos Nacionais (DGEMN) began the consolidation of the walls and tower.[1] But, urgent repairs were made in 1978, that included patching of the masonry.[1] To protect the castle from complete ruin, the government classified the castle as a Property of Public Interest by decree on 26 February 1982.[1]


The castle is located in a rural area, delimited in the east and north by primitive houses.[1] The walls and corbels are situated between the vegetable gardens and yards of the Rua do Castelo, while along the east is a abrupt slope, that is part of a derelict farm.[1]

Of the castle, there remains the embattlement walls with three corbels and vestiges of a fourth. The entire structure is based on an irregular plan.[1][2]

The monument is designated as a castle, but, little remains except for the walls.[1][2] Rui de Azevedo who catalogued Seda as a 12th-13th century fortified settlement, indicated that it was not a castle, between 1350 and 1450, from the records of Baquero Moreno.[1][2][3] Documents from Rui de Pina also indicated that the fortifications of Seda were not identified as a castle in the works of King D. Denis.[1]



  1. ^ a b c d e f g h i j k l m n Gordalina, Rosário; Bucho, Domingos (1997), SIPA (ed.), Castelo de Seda/Fortificações de Seda (IPA.00003213/PT041201030007) (in Portuguese), Lisbon, Portugal: SIPA – Sistema de Informação para o Património Arquitectónico, archived from the original on 24 June 2016, retrieved 22 May 2016 Cite uses deprecated parameter |deadurl= (help)
  2. ^ a b c d e f g Castelo de Seda (restos), IGESPAR – Instituto de Gestão do Património Arquitectónico e Arqueológico (Portuguese Institute of Architectural and Archaeological Heritage), 2006, retrieved 25 May 2016
  3. ^ Nunes (1988)


  • Grande Enciclopédia Portuguesa e Brasileira (in Portuguese), 28, Lisbon, Portugal
  • Almeida, João de (1958), Roteiro dos Monumentos Militares Portugueses (in Portuguese), Lisbon, Portugal
  • Nunes, António (1988), O Castelo Estratégico Português e a Estratégia do Castelo em Portugal (in Portuguese), Lisbon, Portugal
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Castle of Seda
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