The ruins of Lichnice Castle are on the edge of the Iron Mountains in the municipality of Třemošnice. The castle was probably constructed as a royal base in the first half of the 13th century. It was first mentioned in 1261, when it was in possession of Smil of Ronow, who called himself 'Smil of Lichtenburg' and thereby created the 'von Lichtenburg' family.
The castle had a triangular floor plan with two residential towers. In the 14th century, alterations were made, and it was reacquired by the Bohemian Crown in 1410. It was conquered in 1421, during the Hussite Wars, and besieged unsuccessfully in 1428.
In 1490, the castle and estate of Lichtenburg were acquired by the Trčka of Lípa family, who rebuilt the castle in a late Gothic style.
The edifice lost its importance at the end of the 16th century, and the fortifications were dismantled. By 1700, it was already described as a ruin.
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.