Opoczno [ɔˈpɔt͡ʂnɔ] is a town in south-central Poland, in eastern part of Łódź Voivodeship (since 1999), previously in Piotrków Trybunalski Voivodeship (1975–1998). It has a long and rich history, and in the past it used to be one of the most important urban centers of northwestern Lesser Poland. Currently, Opoczno is an important road and rail junction; its patron saint is Saint Cecilia, and the town is famous across Poland for its folklore.
Opoczno lies on the Wąglanka river, in northwestern corner of historic Lesser Poland, on the boundary between Lesser Polish Upland, and Mazovian Lowland. On December 31, 2008, its population was 22,744. The town and its commune have a total area of 190 km2, which makes it one of the largest communes in the voivodeship. In the Polish-Lithuanian Commonwealth, Opoczno was part of Sandomierz Voivodeship, and for centuries was the seat of a large county; in the Second Polish Republic, and in the period 1945 - 1975, it belonged to Kielce Voivodeship.
Łopoczno [wɔˈpɔt͡ʂnɔ] is a village in the administrative district of Gmina Józefów nad Wisłą, within Opole Lubelskie County, Lublin Voivodeship, in eastern Poland. It lies approximately 14 kilometres (9 mi) south-west of Opole Lubelskie and 56 km (35 mi) west of the regional capital Lublin.
Coordinates: 51°4′N 21°50′E / 51.067°N 21.833°E / 51.067; 21.833