Roudnice Castle was built in the 12th century by Bishop Jindřich Břetislav, the nephew of the Czech king Vladislav I, to protected an important trade route from Prague to Upper Lusatia along the Elbe. The castle complex included several farm buildings, protected by a fortified wall; the castle itself had walls that were two meters thick, and watch towers in each corner. In the mid-14th century, it was rebuilt in a Gothic style and became a favorite summer residence for Prague bishops. It is said that Jan Hus was ordained as a priest there.
In 1421, the Catholic Church sold the castle to Jan Smiřický, who renovated it once again. George of Poděbrady, king of Bohemia (1420-1477), captured Roudnice from Smiřický in 1467. It passed into the ownership of William Rožumberk, the Supreme Burgrave and one of the wealthiest men in Bohemia. After Rožumberk’s death, his widow Polyxena Pernštejn married Zdenek Vojtěch of Lobkowicz, Chancellor of the Czech Kingdom and later 1st Prince Lobkowicz, bringing Roudnice into the Lobkowicz family’s possessions. In 1652 their son Václav Eusebius, 2nd Prince Lobkowicz, embarked upon an ambitious project to transform the castle into an early baroque palace. From 1657 until the Second World War the Lobkowicz Collection's library was stored in Roudnice Castle, leading to the library being named the Roudnice Lobkowicz Library.
The castle is open to the public. The basic tour includes visits to the courtyard , tour of the castle chapel with předsálím with information about the family Lobkowicz, a tour of the Romanesque castle from the courtyard, the view from the balcony of the castle. The wine tasting tour includes a tour of the foundations of the original Romanesque castle from the 12th century with a presentation of the town, the castle and the winery.References:
The Kalozha church of Saints Boris and Gleb is the oldest extant structure in Hrodna. It is the only surviving monument of ancient Black Ruthenian architecture, distinguished from other Orthodox churches by prolific use of polychrome faceted stones of blue, green or red tint which could be arranged to form crosses or other figures on the wall.
The church is a cross-domed building supported by six circular pillars. The outside is articulated with projecting pilasters, which have rounded corners, as does the building itself. The ante-nave contains the choir loft, accessed by a narrow gradatory in the western wall. Two other stairs were discovered in the walls of the side apses; their purpose is not clear. The floor is lined with ceramic tiles forming decorative patterns. The interior was lined with innumerable built-in pitchers, which usually serve in Eastern Orthodox churches as resonators but in this case were scored to produce decorative effects. For this reason, the central nave has never been painted.
The church was built before 1183 and survived intact, depicted in the 1840s by Michał Kulesza, until 1853, when the south wall collapsed, due to its perilous location on the high bank of the Neman. During restoration works, some fragments of 12th-century frescoes were discovered in the apses. Remains of four other churches in the same style, decorated with pitchers and coloured stones instead of frescoes, were discovered in Hrodna and Vaŭkavysk. They all date back to the turn of the 13th century, as do remains of the first stone palace in the Old Hrodna Castle.
In 2004, the church was included in the Tentative List of UNESCO"s World Heritage Sites.