Krosno  Krosno (in full The Royal Free City of Krosno, ) is a historical town and county in the Subcarpathian Voivodeship, in southeastern Poland. The estimated population of the town is 47,140 inhabitants as of 2014. The functional city of Krosno has a population of 115,000 population  Krosno is a medieval fortified town, a former Royal Free Town and centre of cloth, linen, canvas, baize and Hungarian wine trade. It is also notable for its glassmaking traditions, which became known as the Krosno Glassware. Until recently it was a provincial capital. Krosno is the site of the first oil well (or "mine") in the world. Krosno is on the river Wisłok. Slovakia is about south, and Ukraine is about east of the city. It is located in the heartland of the Doły (Pits), and its average altitude is above sea level, although there are some hills located within the confines of the city. Neighbouring municipalities are: Korczyna, Krościenko Wyżne, Miejsce Piastowe, Chorkówka, Jedlicze, and Wojaszówka. Situated in the Subcarpathian Voivodeship (since 1999), previously it was the capital of Krosno Voivodeship (1975–1998). It is the capital of Krosno County. Krosno covers an area of , and has seven separate town quarters and 5 housing estates. The historical centre is situated on a hill between the fork of the Lubatówka and Wisłok Rivers (tributary of the San River). The first mention of the town, which names Krosno as one of 34 estates in Małopolska (Lesser Poland) granted to the Lubusz (German: "Lebus") Bishopric, appears in a document signed by Leszek II the Black, Duke of Kraków, in 1282. However, the oldest traces of settlement in the fork of the Wisłok and Lubatówka Rivers, found during archaeological research, date back to the 10th and 11th centuries. Today it is difficult to clearly determine the etymology of the place-name of Krosno. Scholars give several versions explaining the origin of the name. Some researchers thought that the name is connected with "weaving loom" (in Polish: "krosno"), while others traced it back to "pustules", "pimples" or "being pimply" (in Polish: "krosta", "krostowatość"), which apparently reflected the bumpy shape of the area where the first settlement was founded.