According to legend, Pontivy was founded in 685 AD by an English monk called Ivy who built a wooden bridge across the Blavet, giving the town its name – Pont d’Ivy. The town really began to develop in the 12th century when Viscount Rohan settled there and in the 14th century it became the political and administrative capital of the viscounty.
The main site in Pontivy is its château, which overlooks the River Blavet a short walk from the town centre. The present castle was built in 1485 by Viscount Rohan, whose aristocratic line dates back to 1120. The Rohan family seat has seen plenty of action during its 500-year history including being besieged during the Duchy of Brittany War of Independence in 1488 and taken over by Catholic forces during the French Wars of Religion in 1589. The château, which retains many original features, is open to the public and often stages art exhibitions.
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.