Choisy Cathedral, otherwise known as the Church of St. Louis and St. Nicholas, was the first cathedral of the diocese of Créteil, from 1966, when the diocese was created, to 1987, when the present Créteil Cathedral was inaugurated.
The church was built by the architect Ange-Jacques Gabriel under commission from Louis XV to provide a suitable place of worship for the court when the king was staying at his newly purchased residence at the Château de Choisy. The first stone was laid, by the king himself, on 4 July 1748, and the church was dedicated in the presence of the king, the court and the Archbishop of Paris on 21 September 1760.
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.