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 Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople (today Istanbul) since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built. They were also the largest and strongest fortification in both the ancient and medieval world.
Initially built by Constantine the Great, the walls surrounded the new city on all sides, protecting it against attack from both sea and land. As the city grew, the famous double line of the Theodosian Walls was built in the 5th century. Although the other sections of the walls were less elaborate, they were, when well-manned, almost impregnable for any medieval besieger.