Kokořín Castle was built around 1320 by order of Hynek Berka of Dubé. At the close of the 15th century the castle was heavily damaged during the Hussite Wars and renovated in the late Gothic style by the lords of Klinštejn. Since the middle of the 17th century Kokořín had been tenantless and it deteriorated.
The ruins were not bought until 1894 by Václav Špaček of Starburk, who decided to renovate the castle. The architect, Eduard Sochor, was a leader in this project and, considering its occurrence between 1911 and 1918, it was one of the latest Romantic restorations of a Medieval object.
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.