The village lies in the historical region of Cieszyn Silesia. It was first mentioned in 1426 as Brzesowicz.[2][3] Later it was mentioned as Brzezowicz (1447, 1450) and since 1523 it appears under its current name (scribed as Brzezuwka, Brzesowka etc.).[3] The name is derived from birches, (Polish: brzoza).[3]
In 1612 Adam Wenceslaus, Duke of Cieszyn bestowed the village upon his hofmeister Margareth Kostlach (Polish: Małgorzata Kostlachówna), as a reward for her good service at the ducal court.[4] The gift was also privileged, so that Margareth Kostlach could increase population of Brzezówka. Later also craftsmen settlement was allowed, which was extraordinary for a village as previously it was reserved for a ducal town of Cieszyn.[4] As it can be later inferred, Margareth Kostlach was a lover of the duke, that got pregnant with him, bearing his bastard son Wenceslaus Gottfried.
Brzezówka lies in the southern part of Poland, approximately 6 km (4 mi) north of the county seat, Cieszyn, 30 km (19 mi) west of Bielsko-Biała, 60 km (37 mi) south-west of the regional capital Katowice, and 2 km (1.2 mi) east of the border with the Czech Republic.
The village is situated on the geographical border between Silesian Foothills in the south and Ostrava Basin in the north, approximately 280 m (920 ft) above sea level, 16 km (9.9 mi) north-west of the Silesian Beskids. It is drained by several small streams, left tributaries of Piotrówka, in the watershed of Odra. ALthough the name of the village is derived from trees, nowadays it's almost completely deforested.
^Panic, Idzi (2010). Śląsk Cieszyński w średniowieczu (do 1528) [Cieszyn Silesia in Middle Ages (until 1528)] (in Polish). Cieszyn: Starostwo Powiatowe w Cieszynie. p. 312. ISBN978-83-926929-3-5.
^ abcMrózek, Robert (1984). Nazwy miejscowe dawnego Śląska Cieszyńskiego [Local names of former Cieszyn Silesia] (in Polish). Katowice: Uniwersytet Śląski w Katowicach. p. 47. ISSN0208-6336.
^ abPanic, Idzi (2011). Śląsk Cieszyński w początkach czasów nowożytnych (1528-1653) [Cieszyn Silesia in the beginnings of Modern Era (1528-1653)] (in Polish). Cieszyn: Starostwo Powiatowe w Cieszynie. pp. 25–26. ISBN978-83-926929-5-9.