Alzenau (endonym: , , ; ; ), also known as Halcnovian and Haltsnovian, is an East Central German dialect spoken in Haà Âcnów, formerly a village, and now part of the city Bielsko-Biaà Âa in Silesian Voivodeship, Poland. It was the vernacular language of Haà Âcnów until 1945, when ethnic Germans were expelled from Poland. Some examples of the language were recorded in the works of Karl Olma, who was active as a journalist in the Halcnovian exile community in West Germany after World War II. The dialect has been researched from a linguistic standpoint by Marek Dolatowski. In 2016 researchers traced a handful of native speakers of Halcnovian still resident in Haà Âcnów, and recorded them in order to help preserve the language. It belongs to the dialect group of the former Bielsko-Biaà Âa language island, which includes the Wymysorys language.