The Church of Saint Catherine (Chiesa di Santa Caterina) is a synthesis of Sicilian Baroque, Rococo and Renaissance styles.
In 1310 the last will of the rich Benvenuta Mastrangelo determined the foundation of a female monastery under the direction of the Dominican Order. The new monastery was dedicated to Saint Catherine of Alexandria and was erected in the area where the old palace of George of Antioch, admiral of Roger II of Sicily, stood.
In 1532 the widening of the building was decided. Between 1566 and 1596 the church was rebuilt under the supervision of the Mother Prioress Maria del Carretto. The church was inaugurated on 24 November 1596.
During the 19th century the church was damaged on several occasions: during the uprising of 1820-1821, the Sicilian revolution of 1848, the Gancia revolt, the insurrection of Palermo (1860) and the Sette e mezzo revolt (1866).
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.