Hasištejn (Burg Hassenstein) is a ruined medieval castle situated near Kadaň, Klášterec nad Ohří and Chomutov. The castle, first mentioned in Maiestas Carolina, was probably founded by Friedrich of Schönburg to guard the way from Prague to Saxony. The castle was seized by Václav IV of Luxembourg in the early 15th century and given to Nicholas of Lobkowicz.
The most renowned inhabitant of the castle was Bohuslav Hasištejnský z Lobkovic, a poet and traveller who was born in Hassenstein and lived there permanently from 1503 to his death in 1510. He gathered a huge library (comprising more than 650 volumes) in the castle, resulting in many scholars and humanists visiting Hasištejn Castle to borrow his books. Martin Luther and Philipp Melanchthon were among his visitors.
After Bohuslav's death in 1510, Hasištejn Castle began to fall into disrepair, which was exacerbated when it caught fire in 1560. Although the castle is now a ruin, its tower and walls remain standing to this day. While the castle became state property during the Communist regime, it was returned to the Lobkowicz family after 1989.
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.