Lomnice nad Popelkou Castle, Baroque château in Lomnice nad Popelkou, Czech Republic.

Lomnice nad Popelkou Castle is a baroque château located in the town of Lomnice nad Popelkou in the Semily District. The building displays architectural elements from different periods and now functions as a community cultural space with library facilities.

The site began as a fortress first documented in 1417, during the siege of Lomnice nad Popelkou by Hynek Jablonský, captain of King Wenceslas IV. Vilém Štěpanický of Valdštejn bought it in 1524, and his son Václav rebuilt it as a Renaissance château in 1566–1567. Václav of Morzin gave it its baroque form in 1730–1737.

The castle serves as a community gathering place and houses the municipal library, playing an active role in local life today. Walking through its spaces, you can see how the building remains part of the town's daily rhythms and activities.

The castle is located in the town of Lomnice nad Popelkou, accessible from major nearby cities in the region. Since it now serves as a public cultural center with a library, visiting is possible during regular operating hours and the grounds are generally walkable.

The castle displays a rare combination of Gothic, Renaissance, and baroque architectural elements layered together from its many transformations. Walking through the building, you can read these different periods in the walls and rooms as the structure evolved across centuries.