The Basilica of the Most Holy Trinity, commonly known La Magione, is a Norman church of Palermo. It was completed in 1191 and is the last church built in the capital of the Norman Kingdom of Sicily during the period of the Hauteville dynasty. Its foundation is linked to the Chancellor of the Kingdom, Matthew of Ajello. Initially attributed to the Cistercians, during the period of the Hohenstaufen dynasty the church became the main house of the Teutonic Order. It is located in the quarter of the Kalsa, within the historic centre of Palermo.
In 1193 the prince Roger III of Sicily, son and heir of King Tancred of Sicily, was buried in this church. In 1194 Tancred himself was buried here.
After the death of Tancred the Kingdom was conquered by the Holy Roman Emperor Henry VI, husband of Constance of Hauteville, daughter of King Roger II of Sicily. In 1197 the church and its monastic fiefs was confiscated from the Cistercians and given to the Teutonic Knights. Their presence ensured the protection of young King Frederick II for over a decade during his minority. The knights built dormitories, an armoury and stables.
In 1492, at the request of Pope Innocent VIII, King Ferdinand II of Aragon, removed the Teutonic Order from Sicily. The complex became a residence for priests and abbots under the administration of the archbishop of Palermo. In 1780 it passed unto direct control of the Bourbon of Naples and in 1787 it was given to the Sacred Military Constantinian Order of Saint George. This situation ended with the unification of Italy in 1861.
In 19th century an important restoration was realized by Giuseppe Patricolo. Another restoration was realized after the Second world war. The church has the title of Minor basilica.
References:The Clementinum is a historic complex of buildings in Prague. Until recently the complex hosted the National, University and Technical libraries, the City Library also being located nearby on Mariánské Náměstí. The Technical library and the Municipal library have moved to the Prague National Technical Library at Technická 6 since 2009. It is currently in use as the National Library of the Czech Republic.
Its history dates from the existence of a chapel dedicated to Saint Clement in the 11th century. A Dominican monastery was founded in the medieval period, which was transformed in 1556 to a Jesuit college. In 1622 the Jesuits transferred the library of Charles University to the Klementinum, and the college was merged with the University in 1654. The Jesuits remained until 1773, when the Klementinum was established as an observatory, library, and university by the Empress Maria Theresa of Austria.