
author
1860–1928
A pioneering Polish linguist and Slavist, he helped shape the study of the Polish language through major works on its history and grammar. He also served as a professor and rector of the Jagiellonian University.

by Kazimierz Nitsch, Jan Łoś, Jan Michał Rozwadowski
Born in Kielce on May 14, 1860, Jan Nepomucen Bonifacy Łoś became one of the key figures in Polish linguistics and Slavic studies. He is especially remembered for his work on the historical grammar of Polish and for writing major scholarly studies that helped organize and explain the language’s development.
His best-known achievements include the multi-volume Gramatyka polska (published in the 1920s) and Wiersze polskie w ich dziejowym rozwoju. Alongside his research, he taught at the Jagiellonian University in Kraków, where he later served as rector.
Łoś died in Kraków on November 10, 1928. His work remained important long after his lifetime, especially for readers and scholars interested in the history, structure, and literary development of Polish.