Notably, Composer and organistJulien Koszul (1844–1927), who was the grandfather of both mathematicianJean-Louis Koszul and composerHenri Dutilleux, was born in Morschwiller-le-Bas.
located in north-eastern France, within the Grand Est region, specifically in the Haut-Rhin department. It lies about 5 kilometers southwest of the city of Mulhouse.
The commune covers an area of approximately 7.55 square kilometers, with elevations ranging from 248 to 311 meters above sea level, and an average altitude of around 260 meters.[5]
The climate of Morschwiller-le-Bas is characterized by a temperate continental pattern influenced by the Alsace region, which lies in the rain shadow of the Vosges Mountains, resulting in lower precipitation compared to surrounding areas. Winters are distinctly cold with the possibility of snowfall, while summers are warm to moderately hot. Temperatures typically range from low averages around freezing in winter months to about 25–30 °C at the height of summer. Rainfall is distributed throughout the year, although spring and autumn often record the highest levels of precipitation[6].