Frymburk (Friedenburg) castle was founded in the beginning of the 14th century probably by the Lords of Lipá. The castle is surrounded by the River Olešenka and lies next to Nový Hrádek. It has a big round tower, partly collapsed. A water basin is carved in the rock in a small courtyard.
The castle is for the first time mentioned in the year 1354, when it was allegedly in property of not closely known Matyáš of Frymburk. The castle as well as surrounding manors at Nový Hrádek were taken over by Hynek of Dubá and in Náchod (in 1368), but there also appears name of Jinřich of Lipá and Jan of Lichtenberk. In the beginning of the 15th century the manor belonged to Dobruška.
In the course of the Thirty Year’s War the castle was conquered by peasant rebels and some time later it was burnt by Swedish together with Nový Hrádek. It has never been renewed. The ruins are today unstable and dangerous, and therefore not available for public.
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.