Duchy of Oels

The Basilica of St. John the Evangelist (Polish: Bazylika Świętego Jana Apostoła), formerly the Castle Church (German: Schlosskirche), is a Roman Catholic parish church in the Oleśnica West deanery within the Archdiocese of Wrocław. Between 1538 and 1945, the building functioned as a Protestant church dedicated to John the Baptist. On 8 October 1998, it received the honorary title of minor basilica. Documentary evidence of the church and its parish first appears in records dating to 1230. The brick structure was constructed in the second half of the 13th century and served as the castle church. The building underwent repeated reconstructions by the Poděbrady, Württemberg, and Hohenzollern families. These modifications have resulted in an architectural form that integrates elements of Gothic, Renaissance, Mannerism, and Baroque styles. In 1616, a passage was added, connecting the church to the Oleśnica Castle. An enlargement project undertaken in 1905 culminated in a structural collapse of the southern nave and the main nave. In 1910, the church was subsequently rebuilt and modernized. The interior contains monuments such as the only surviving chained library in Central Europe. Further features include the organ, the Mannerist pulpit, the ducal loge, choir stalls, galleries, bells, a Baroque high altar, and the mausolea of the Poděbrady and Württemberg families, which house coffins and sarcophagi belonging to members of both dynasties.

Gmina Oleśnica is a rural gmina (administrative district) in Oleśnica County, Lower Silesian Voivodeship, in south-western Poland. Its seat is the town of Oleśnica, although the town is not part of the territory of the gmina. The gmina covers an area of 243.44 square kilometres (94.0 sq mi), and as of 2019 its total population is 13,689.

Oleśnica County (Polish: powiat oleśnicki) is a unit of territorial administration and local government (powiat) in Lower Silesian Voivodeship, south-western Poland. It was created on January 1, 1999, as a result of the Polish local government reforms passed in 1998. The county covers an area of 1,049.7 square kilometres (405.3 sq mi). Its administrative seat is the town of Oleśnica, and it also contains the towns of Syców, Twardogóra, Bierutów and Międzybórz. As of 2019 the total population of the county is 107,090. The most populated towns are Oleśnica with 37,169 inhabitants and Syców is 10,397 inhabitants.

Oleśnica (pronounced Oleshnitza [ɔlɛɕˈɲit͡sa]; German: Oels; Silesian: Ôleśnica) is a town in Lower Silesian Voivodeship, in south-western Poland, within the Wrocław metropolitan area. It is the administrative seat of Oleśnica County and also of the rural district of Gmina Oleśnica, although it is not part of the territory of the latter, the town being an urban gmina in its own right. The town is famed for its large 16th-century castle, which has previously been the seat of several dukes and lords. The castle's inner courtyard arcades, a masterpiece of Renaissance architecture, are iconic in the region.

Oleśnica Castle (Polish: Zamek oleśnicki) is a castle in Oleśnica, Lower Silesian Voivodeship, southwestern Poland.

Spalice [spaˈlit͡sɛ] is a village in the administrative district of Gmina Oleśnica, within Oleśnica County, Lower Silesian Voivodeship, in south-western Poland. It lies approximately 3 kilometres (2 mi) north-east of Oleśnica and 28 km (17 mi) east of the regional capital Wrocław.

Dąbrowa [dɔmˈbrɔva] is a village in the administrative district of Gmina Oleśnica, within Oleśnica County, Lower Silesian Voivodeship, in south-western Poland.It lies approximately 4 kilometres (2 mi) north of Oleśnica, and 26 kilometres (16 mi) north-east of the regional capital Wrocław.

Boguszyce [bɔɡuˈʂɨt͡sɛ] is a village in the administrative district of Gmina Oleśnica, within Oleśnica County, Lower Silesian Voivodeship, in south-western Poland.

Bystre [ˈbɨstrɛ] is a village in the administrative district of Gmina Oleśnica, within Oleśnica County, Lower Silesian Voivodeship, in south-western Poland.It lies approximately 3 kilometres (2 mi) south-west of Oleśnica, and 24 kilometres (15 mi) east of the regional capital Wrocław.

Ligota Wielka [liˈɡɔta ˈvjɛlka] is a village in the administrative district of Gmina Oleśnica, within Oleśnica County, Lower Silesian Voivodeship, in south-western Poland.

Świerzna (Polish: [ˈɕfjɛʐna]) is a village in the administrative district of Gmina Oleśnica, within Oleśnica County, Lower Silesian Voivodeship, in south-western Poland.

Nowosiedlice [nɔvɔɕɛdˈlit͡sɛ] is a village in the administrative district of Gmina Dobroszyce, within Oleśnica County, Lower Silesian Voivodeship, in south-western Poland.