The castle was built by the Boçari family, one of the principal Albanian families of Tragjas, in the 16th and expanded in the 17th century. Modern members of the family include Markos Botsaris, Katerina Botsari Kito Bocari, Gëzim and Ismail Boçari. The fortification features arrowslits for artillery openings in the walls. The northern and eastern corners of the castle feature large towers. The stone walls form a rectangle surrounding the courtyard and have a width of 1.25 metres and a height of 5.5 metres.
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.