Wikipedia
Kotlarnia
Kotlarnia is a village in the administrative district of Gmina Bierawa, within Kędzierzyn-Koźle County, Opole Voivodeship, in south-western Poland. It lies approximately east of Bierawa, south-east of Kędzierzyn-Koźle, and south-east of the regional capital Opole.
Before 1945 the area was part of Germany (see Territorial changes of Poland after World War II).
The village has a population of 743.