was brought to Portugal by the Cistercian Order. The first fully Gothic building in Portugal is the church of the Monastery of Alcobaça, a magnificent example of the clear and simple architectural forms favoured by the Cistercians. The church was built between 1178 and 1252 in three phases, and seems inspired by the Abbey of Clairvaux, in the Champagne. Its three aisles are very tall and slender, giving an exceptional impression of height. The whole church is covered by rib vaulting and the main chapel has an ambulatory and a series of radiant chapels. The vault of the ambulatory is externally supported by flying buttresses, typical features of Gothic architecture and a novelty at the time in Portugal. After the foundation of Alcobaça, the Gothic style was chiefly disseminated by mendicant orders. Along the 13th and 14th centuries, several convents were founded in urban centres, important examples of which can be found in Oporto, Coimbra, Guimarães, Santarém, Elvas, Lisbon and many other places. Mendicant Gothic churches usually had a three-aisled nave covered with wooden roof and an apse with three chapels covered with rib vaulting. These churches also lacked towers and were mostly devoid of architectural decoration, in tone with mendicant ideals. Mendicant Gothic was also adopted in several parish churches built all over the country, for instance in Sintra, Mafra, Lourinhã and Loulé. : church façade and Founder's Chapel. Many of the Romanesque cathedrals were modernised with Gothic elements. Thus, the Romanesque nave of Oporto Cathedral is supported by flying buttresses, one of the first built in Portugal. The apse of Lisbon Cathedral was totally remodelled in the first half of the 14th century, when it gained a Gothic ambulatory illuminated by a clerestory. The ambulatory has a series of radiant chapels illuminated with large windows, contrasting with the dark Romanesque nave of the cathedral. An important transitional building is Évora Cathedral, built during the 13th century; even though its floorplan, façade and elevation are inspired by Lisbon Cathedral, its forms are already Gothic. Many Gothic churches maintained the fortress-like appearance of Romanesque times, like the already-mentioned Évora Cathedral, the Church of the Monastery of Leça do Balio near Matosinhos, and even as late as the 15th-century, with the Main Church of Viana do Castelo. Several Gothic cloisters were built and can still be found in the Cathedrals of Oporto, Lisbon and Évora as well as in monasteries like Alcobaça, Monastery of Santo Tirso and the Convent of the Order of Christ. In the early 15th century, the building of the Monastery of Batalha, sponsored by King John I, led to a renovation of Portuguese Gothic. After 1402, the works were trusted to Master Huguet, of unknown origin, who introduced the Flamboyant Gothic style to the project. The whole building is decorated with Gothic pinnacles, reliefs, large windows with intricate tracery and elaborate crenellations. The main portal has a series of archivolts decorated with a multitude of statues, while the tympanum has a relief showing Christ and the Evangelists. The Founder's Chapel and the Chapter House have elaborate star-ribbed vaulting, unknown in Portugal until then. Batalha influenced 15th-century workshops like those of Guarda Cathedral, Silves Cathedral and monasteries in Beja and Santarém. Another Gothic variant was the so-called Mudéjar-Gothic, which developed in Portugal towards the end of the 15th century, especially in the Alentejo region. The name Mudéjar refers to the influence of Islamic art in the Christian kingdoms of the Iberian Peninsula, especially in the Middle Ages. In the Alentejo and elsewhere, Mudéjar influence in several buildings is evident in the profile of windows and portals, often with horseshoe arches and a mullion, circular turrets with conical pinnacles, Islamic merlons, etc., as well as tile decoration. Examples include the portico of St Francis Church of Évora, the courtyard of the Sintra Royal Palace and several churches and palaces in Évora, Elvas, Arraiolos, Beja, etc. Múdejar eventually intermingled with the Manueline style in the early 16th century. tower was built in the 15th century.
Castles and palaces
During the Gothic era, several castles had to be either built or reinforced, especially along the border with the Kingdom of Castille. Compared to previous castles, Gothic castles in Portugal tended to have more towers, often of circular or semi-circular plan, keep towers tended to be polygonal, and castle gates were often defended by a pair of flanking towers. A second, lower wall curtain were often built along the perimeter of the main walls to prevent war machines from approaching the castle. Features like machicolations and improved arrowslits became also widespread. Starting in the 14th century, keep towers became larger and more sophisticated, with rib vaulting roofs and facilities like fireplaces. Keep towers with improved residential characteristics can be found in the castles of Beja, Estremoz and Bragança, while some later castles became real palaces, like those in Penedono, Ourém and Porto de Mós. The most significant case is the Castle of Leiria, turned into a royal palace by King John I. Some rooms of the palace are decorated with splendid Gothic loggias, from which the surrounding landscape could be appreciated by the King and Queen.
