Christ. The seat of the former Knights Templar was converted in 1357 into the seat of this new order. 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. What remains of this adaptation was the colonnade frame with interior arch. 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). 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. 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. 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. 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. 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. 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