The Cathedral of Notre-Dame-de-Nazareth in Orange dates originally from the 4th century. It was rebuilt in the Romanesque style in the 12th century. Guillaume des Baux, Prince of Orange, attended its consecration in 1208.
After being sacked by the Huguenots in 1561, it was restored early in the 17th century following the original plan. Towards the end of the 18th century, Orange’s last bishop, Monseigneur du Tillet, undertook its restoration andadded to its furniture (stalls, main altar, etc). Converted into a temple to the goddess of Reason during the Revolution, it was later returned to the church. In the 19th century, it was decorated with frescos and stained-glass windows, and the eastern porch was reconstructed in the neo-gothic style.
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.