Olesno

A settlement in Poland.

English name

Olesno — Current official Polish Latin-script name, retained in English with its local spelling.

Other forms in use:

Rosenberg in Oberschlesien — German historical name used in English accounts of the place before 1945.
Rosenberg O.S. — Abbreviated historical German qualifier identifying Upper Silesia.
Rosenberg — Short German historical name; ambiguous without regional context.

Olesno — Same form as in English; retained in French reference usage.

Other forms in use:

Olesno is a county town in Poland's Opole region. It is known for the wooden pilgrimage church of Saint Anne outside the town centre.

Reference pages checked 2026-11-15: https://en.wikipedia.org/wiki/Olesno ; https://fr.wikipedia.org/wiki/Olesno.