Question: "Which place was fixed during the course of two ruler's reign?"  Context: "Among the parish churches are Saints John (Baptist and Evangelist), rebuilt in 1368, whose dome, decorated by Palonino, contains some of the best frescoes in Spain; El Templo (the Temple), the ancient church of the Knights Templar, which passed into the hands of the Order of Montesa and was rebuilt in the reigns of Ferdinand VI and Charles III; the former convent of the Dominicans, at one time the headquarters of the Capital General, the cloister of which has a beautiful Gothic wing and the chapter room, large columns imitating palm trees; the Colegio del Corpus Christi, which is devoted to the Blessed Sacrament, and in which perpetual adoration is carried on; the Jesuit college, which was destroyed in 1868 by the revolutionary Committee of the Popular Front, but later rebuilt; and the Colegio de San Juan (also of the Society), the former college of the nobles, now a provincial institute for secondary instruction."  Answer:
El Templo (the Temple)