St. Nicholas Church is a large, cruciform town church set on Place Dalton at the heart of the lower town which clusters below the walls of the citadel. Due to the destruction of the French Revolution, WWI and WWII it is the most significant surviving medieval building in the town.
The church is first mentioned in 1208 as a foundation of the Abbey of Notre-Dame within the citadel, a relationship which existed into the 16th century. About this time, the silting up of one of the channels caused the centre of the town to move southwards, and St Nicholas took over from St Peter as the main town church.
The vaulted roofs in the nave and transepts were installed in the 17th century, but their weight caused the walls to crack, and as part of the rebuilding the nave was widened and lengthened, a response to the doubling in population of the lower town that century.
All the glass was destroyed during the liberation, and has so far been replaced in the lower stories with some splendid 1980s abstract designs.
References:The historic city of Trogir is situated on a small island between the Croatian mainland and the island of Čiovo. Since 1997, it has been included in the UNESCO list of World Heritage Sites for its Venetian architecture.
Trogir has 2300 years of continuous urban tradition. Its culture was created under the influence of the ancient Greeks, and then the Romans, and Venetians. Trogir has a high concentration of palaces, churches, and towers, as well as a fortress on a small island. The orthogonal street plan of this island settlement dates back to the Hellenistic period and it was embellished by successive rulers with many fine public and domestic buildings and fortifications. Its beautiful Romanesque churches are complemented by the outstanding Renaissance and Baroque buildings from the Venetian period.
Trogir is the best-preserved Romanesque-Gothic complex not only in the Adriatic, but in all of Central Europe. Trogir's medieval core, surrounded by walls, comprises a preserved castle and tower and a series of dwellings and palaces from the Romanesque, Gothic, Renaissance and Baroque periods. Trogir's grandest building is the church of St. Lawrence, whose main west portal is a masterpiece by Radovan, and the most significant work of the Romanesque-Gothic style in Croatia.