Templars

The convent was founded by the Order of Poor Knights of the Temple (or Templar Knights) in 1118.^[1] Its construction continued until the final part of the 12th century with the construction of the oratory, in one of the angles of the castle, completed by the Grand Master D. Gualdim Pais (sometime around 1160).^[1] Around 1190 it was encircled and resisted the armies of caliph Abu Yusuf al-Mansur who was successful in taking strongholds in the south.^[1] (A plaque was erected near the entrance to the castle to commemorate this event).

During the second quarter of the 13th century, Tomar was transferred into the control of the Templars, becoming its seat.^[1] The castle became an integral part of the defence system created by the Templars to secure the border of the young Christian Kingdom against the Moors, which at the time occupied the area to approximately the Tagus River. But, following the dissolution of the Templar Order, on 14 March 1319, and following the request of King Denis of Portugal, Pope John XXII instituted the Order of Christ.^[1] The seat of the former Knights Templar was converted in 1357 into the seat of this new order.^[1]

The famous round church (rotunda) of the castle of Tomar was also built in the second half of the 12th century. The church, like some other templar churches throughout Europe, was modelled after the Dome of the Rock in Jerusalem, which was believed by the crusaders to be a remnant of the Temple of Solomon. The Church of the Holy Sepulchre of Jerusalem may also have served as model.

Order of Christ

Following the dissolution of the Templar Order, on 14 March 1319 (following the request of King Denis of Portugal), Pope John XXII instituted the Order of Christ.^[1] The Templar order had been suppressed during most of Europe from 1312 to 1314, but in Portugal its members, assets, and partly its membership were transferred to the Order of Christ.^[1] The seat of the former Knights Templar was converted in 1357 into the seat of this new order.^[1] As a result, at about the first half of the 15th century, work was completed to adapt the Templar oratory, introducing an open choir to the western niche, about half-way up the wall.^[1] What remains of this adaptation was the colonnade frame with interior arch.^[1] At the same time the main palace was constructed.

During the internship of Prince Henry the Navigator as its leader (1417–1450), the Order of Christ initiated the construction of two cloisters under the direction of master Fernão Gonçalves: the Claustro do Cemitério (Cemetery Cloister) and Claustro das Lavagens (Washing Cloister).^[1] Prior to these large works, Henry began work on constructing the Chapel of São Jorge sometime in 1426 and was responsible for urban improvements in the town of Tomar.^[1]

In 1484, King D. Manuel (who became Master of the Order in 1484 and King of Portugal in 1495) ordered the construction of a sacristy (today the Hall of Passage), that connected the choir to the Chapel of São Jorge, linking the choir with the wall of the stronghouse.^[1] By the end of the century, the convent's General Chapter, decided to expand the convent (sometime around 1492), with 3,500 reis being spent on the public works in 1499: the chapterhouse, main altar, ironworks for the niche/archway, paintings and sculptures (for the same) and the choir were all expanded or remodelled.^[1]

A new meeting of the Chapter to reform the Order, ordered by the King 1503, expropriated the old Vila de Dentro, within the walls and closed the Sun Gate and Almedina Gate.^[1] On 11 October 1504, Francisco Lopes was nominated as masterbuilder for the project, by King John III, receiving 8$000 reis annually and 120 reis for meals. By 1506, D. Manuel decided to order the construction of the church's nave.^[1]

The successor of Manuel I, King John III, demilitarised the order, turning it into a more religious order with a rule based on that of Bernard of Clairvaux. He also ordered the construction of a new cloister in 1557, which is one of the best examples of Renaissance architecture in Portugal.

In 1581, after a succession crisis, the Portuguese Nobility gathered in the Convent of Christ in Tomar and officially recognised Philip II of Spain (Philip I of Portugal) as King. This is the beginning of the Iberian Union (1581–1640), during which the Crowns of Portugal and Spain were united in a dynastic union. The aqueduct of the Convent was built during this period (aqueduct completed in 1614).

Castle

Interior of the Round church decorated with late Gothic painting and sculpture.

The castle of Tomar was built around 1160 on a strategic location, over a hill and near river Nabão. It has an outer defensive wall and a citadel (alcáçova) with a keep inside. The Keep, a central tower of residential and defensive functions, was introduced in Portugal by the Templars, and the one in Tomar is one of the oldest in the country. Another novelty introduced in Portugal by the Templars (learned from decades of experience in Normandy and Brittany and elsewhere) are the round towers in the outer walls, which are more resistant to attacks than square towers. When the town was founded, most of its residents lived in dwellings located inside the protective outer walls of the castle.

Church

The Romanesque round church is a Catholic Church from the castle (charola, rotunda) was built in the second half of the 12th century by the Knights Templar. From the outside, the church is a 16-side polygonal structure, with strong buttresses, round windows and a belltower. Inside, the round church has a central, octagonal structure, connected by arches to a surrounding gallery (ambulatory). The general shape of the church is modelled after similar round structures in Jerusalem: the Mosque of Omar and the Church of the Holy Sepulchre.

The capitals of the columns are still Romanesque (end of the 12th century) and depict vegetal and animal motifs, as well as a Daniel in the Lions' Den scene. The style of the capitals shows the influence of artists working on the Cathedral of Coimbra, which was being built at the same time as the round church.

The interior of the round church is magnificently decorated with late gothic/manueline sculpture and paintings, added during a renovation sponsored by King Manuel I starting in 1499. The pillars of the central octagon and the walls of the ambulatory have polychrome statues of saints and angels under exuberant Gothic canopies, while the walls and ceilings of the ambulatory are painted with Gothic patterns and panels depicting the life of Christ. The paintings are attributed to the workshop of the court painter of Manuel I, the Portuguese Jorge Afonso, while the sculptured decoration is attributed to Flemish sculptor Olivier de Gand and the Spaniard Hernán Muñoz. A magnificent panel depicting the martyrdom of Saint Sebastian, by Portuguese painter Gregório Lopes, was painted for the Round Church and now hangs in the National Museum of Ancient Art in Lisbon.

Manueline nave

Detail of the round church, view from the nave

The famous chapterhouse window, made by Diogo de Arruda in 1510–1513.

During the administration of Prince Henry the Navigator (first half of the 15th century), a gothic nave was added to the round church of the Convent, thus turning the round church into a church apse. From 1510 onwards, King Manuel I ordered the rebuilding of the nave in the style of the time, a mix of late gothic and renaissance that would be called Manueline style by art historians. The architects involved were the Portuguese Diogo de Arruda and the Spaniard Juan de Castillo (João de Castilho).

From the outside, the rectangular nave is covered by abundant Manueline motifs, including gargoyles, gothic pinnacles, statues and "ropes" that remind the ones used in the ships during the Age of Discovery, as well as the Cross of the Order of Christ and the emblem of King Manuel I, the armillary sphere. The so-called Window of the Chapter House (Janela do Capítulo), a huge window visible from the Saint Barbara Cloister in the Western façade of the nave, carries most of the typical Manueline motifs: the symbols of the Order of Christ and of Manuel I, and fantastic and unprecedented elaborations of ropes, corals and vegetal motifs. A human figure in the bottom of the window probably represents the designer, Diogo de Arruda. This window of the Convent constitutes one of the masterworks of Manueline decoration. Above is a smaller circular window and a balustrade. The façade is divided by two string courses of knotted ropes. The round angle buttresses are decorated with gigantic garters (alluding to investiture of Manuel I by the Order of the Garter by the English king Henry VII).

The entrance of the church is done through a magnificent lateral portal, also decorated with abundant Manueline motifs and statues of the Virgin with the Child as well as the Prophets of the Old Testament. This portal was designed by João de Castilho c. 1530.

In the interior, the Manueline nave is connected to the Romanesque round church by a large arch. The nave is covered by beautiful ribbed vaulting and has a high choir that used to have Manueline choir stalls, unfortunately destroyed by invading Napoleonic troops in the early 19th century. Under the high choir there is a room that used to be the sacristy of the church. Its window is the famous Chapter House Window already mentioned.

Cloisters

Gothic Cloister of the Cemetery (first half of the 15th century).

The Convent of Christ has a total of eight cloisters, built in the 15th and 16th centuries. Some examples:

• Claustro da Lavagem (Washing Cloister): Two-storey gothic cloister built around 1433 under Henry the Navigator. The garments of the monks used to be washed in this cloister, hence the name.
• Claustro do Cemitério (Cloister of the Cemetery): Also built under Henry the Navigator, this gothic cloister was the burial site for the knights and monks of the Order. The elegant twin columns of the arches have beautiful capitals with vegetal motifs, and the walls of the ambulatory are decorated with 16th-century tiles. In a manueline tomb (c. 1523) rests Diogo da Gama, brother of navigator Vasco da Gama.
• Claustro de Santa Bárbara (Saint Barbara's Cloister): Built in the 16th century. The Chapter House Window and the West façade of the manueline nave of the church are visible from this cloister.
• Claustro de D. João III (Cloister of John III): Started under King John III of Portugal, was finished during the reign of Philip I of Portugal. The first architect was Diogo de Torralva, who began the work in 1557, to be finished in 1591 by Philip I's architect, the Italian Filippo Terzi. This magnificent, two-story cloister connects the dormitory of the monks to the church and is considered one of the most important examples of Mannerist architecture in Portugal. The storeys are connected to each other by four elegant helicoidal stairways, located at each corner of the cloisters.