Pontoise Cathedral, raised to the status of cathedral in 1966 when the Diocese of Pontoise was created, is dedicated to Saint Maclovius (Maclou). Construction began in the 12th century on the site of an ancient chapel of Saint Eustace and the building was enlarged and completed in the 15th and 16th centuries. Thus the central and eastern parts of the cathedral are 12th century, while the tower and the central portal are in the Flamboyant style. There are Renaissance additions flanking the central structure, and a north portal of the same period.
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.