The Iglesia de San Idelfonso is a Baroque style church located in the center of the historic city of Toledo. Its construction took more than 100 years. Work began in 1629 on lands acquired by the Jesuits of Toledo in 1569. It was the birthplace of Saint Ildefonsus.
Its approach followed the example of the Jesuit churches of Palencia and Alcalá de Henares and that of the Church of the Gesù, in Rome. It is the main church of the Company of Jesus. This trace has been attributed to Jan Bautista Monegro, at that time the master of the Cathedral. Jesuit architect Pedro Sánchez, a Jesuit brother, was in charge of the construction of the temple. Sánchez died in 1633 and was replaced by another companion of his order, Francisco Bautista, who built the facade and reredos in Baroque style. In 1669, Bautista left his place to Bartolomé Zumbigo, native architect of Toledo, who finished the towers and the facade.
San Idelfonso was consecrated in 1718, although the sacristy, the main chapel and the octave, which contains the reliquary were incomplete. In 1765, the temple was finally completed under the direction of Jose Hernandez Sierra, architect of Salamanca. Unfortunately for the order of the Jesuits, only two years after the expulsion from Spain by order of king Charles III of Spain under the charge of instigating the Esquilache Riots, which had taken place in 1766.
References:The Church of St Donatus name refers to Donatus of Zadar, who began construction on this church in the 9th century and ended it on the northeastern part of the Roman forum. It is the largest Pre-Romanesque building in Croatia.
The beginning of the building of the church was placed to the second half of the 8th century, and it is supposed to have been completed in the 9th century. The Zadar bishop and diplomat Donat (8th and 9th centuries) is credited with the building of the church. He led the representations of the Dalmatian cities to Constantinople and Charles the Great, which is why this church bears slight resemblance to Charlemagne's court chapels, especially the one in Aachen, and also to the Basilica of San Vitale in Ravenna. It belongs to the Pre-Romanesque architectural period.
The circular church, formerly domed, is 27 m high and is characterised by simplicity and technical primitivism.