The Château des Quat'Sos name is of Gascon origin, describing the identical appearance of the four corner towers, the 'Four Sisters'. The castle is located on the promontory overlooking the confluence of the Garonne and the tributary Charros.
In 1224, permission was granted by King Louis VIII of France to build a castle. The castle was completed by King Henry III of England, while Duke of Aquitaine, to defend the English Duchy of Gascony. During the Hundred Years' War, the castle was fiercely disputed between English and French.
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.