FORTIFICAtiONS BAstion on the border between Extremadura and Alentejo |
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CONCEPT | |
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The defensive traditional constructions inherited from the medieval stage, were based on the traditional castle, normalemnte raised on rocky formations, and the citadels defended by curtains of high walls and towers that were protecting them, raising his height even over those, to prevent the scale of the enclosure for the forces assailants. With the advances of the artillery, which in the decade of 1450 already was provided with a considerable destructive power, one saw that the high medieval walls, they were succumbing before the enemy fire. It considered, in Italy, to reduce initially the height of the defenses, especially of his towers, in order that they were offering white minor to them new pieces of artillery. The dimensions of the pits were accentuated and the new towers and curtains were adapted, to be able to use as seat the defensive bateías. The fortifications, sometimes confused with the constructions Vauban, were forming a complex plot of defensive constructions, planned by means of a perfect geometry, which basic aim was assailants allowed only the step of the forces, for a series of places that were perfectly beaten by the artillery of the square. Basically they were formed by a system of trace in star, where a series of linens of muralllas (curtains), there were joining for some fortifications of polygonal form, so called bastions. The tracing of the whole system, it was impeding the access to the squares asesiadas by means of pits and other obstacles, which were preventing to a great extent, the direct impact of the artillery of site and the incursion of the cavalry and infantry of assault. |
PLANES |
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Plane of the reforms of bastion fortification de Marvão (Potugal)
It is a question of an evident example, of the evolution of the medieval strengths to fortifications " to the modern one ". It can be observed since they have been added in the vertexes of the medieval fortification, bastions more or less big, with the aim to reinforce the set. At the same time, there are completed the defensive structures of the accesses to the different enclosures. |
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Pentagonal fortification | Plant of Olivenza's fortification (Badajoz) |
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Fortification bastioned of the Badajoz (1812) | Plane of Valencia de Alcantara |
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Plant and section of the pit placed between the bastions of San Jose and San Vicente (fortification bastion of Badajoz) |
Detail of plant of the fortification bastioned of Badajoz |
ELEMENTS |
FORTIFICAtiONS BAstioNED oN the border of EXTREMAdura and ALENTEJo |
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The relations between the kingdoms of Portugal and Spain it has happened along the history for a prolix series of meetings and misunderstandings. Marriages between royal families originated on one hand alliances, and for other big successor disputes. All this gave place to big conflicitos penisulares encouraged by England and France that were afraid of an Iberian close peninsula and an empire that undoubtedly would dominate the world. These fights originated the fortification of the border, to bear in the times of crisis the advance of the invading armies. Between the XVIIth and XVIIIth century the new skills of artillery remained obsolete and the medieval fortificacione, they were turning out to be very vulnerable to this type of assaults. The walls turned into curtains (mas low and sloping) and the towers into bastions, elements of pentagonal form that were tolerating better the impacts of the new missiles. This way the fortifications bastions that the kingdoms of Castile and Portugal arranged along the opposite stripe. |
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All these fortifications train a defensive set of the only characteristics in the world. His condition of conservation and importantancia strategic and military very different sound in every case. The unique city that preserves almost the totality of the military work, is Elvas. In the same locality they place the Fort of Nª Sª of Graça, known equally with the name of Fort of the Star. Constructed by Lippe in the 17th century it is possibly the impregnable foraleza mas of the whole Europe. Badajoz was the fortification abaluartada mas important for your size and military importance, but great part of your elements they were devastated in the first half of the 20th century. Valencia de Alcantara, Olivenza on Spanish part is other important points, close to small works of reinforcement in other populations as The Codosera or Alburquerque. In Portugal they stand out from north to south, Castelo de Vide, Marvao, Portalegre, Estremoz, Jorumenha or Monsaraz. |
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CAMPO MAIOR | OUGUELA | JUROMENHA | ||
ELVAS | BADAJOZ | OLIVENZA | ||
CASTELO DE VIDE | ESTREMOZ | ALCANTARA | ||
MARWAO | MOURAO | VALENCIA DE ALCANTARA |
BADAJOZ |