Albert Ludwig Sigesmund Neisser
Neisser was born in the Silesian town of Schweidnitz (now Świdnica, in Poland), the son of a well-known Jewish physician, Dr. Moritz Neisser. After he completed the elementary school in Münsterberg, Neisser enrolled in the St. Maria Magdalena School in Breslau (now Wrocław, in Poland). In this school, he was a contemporary of another great name in the history of medicine, Paul Ehrlich. He obtained the Abitur in 1872.
Albert Schweitzer
Schweitzer was born in the province of Alsace, which had been a French province since 1639 and became Prussian after France lost it to Prussia in 1871. It became French again in 1919, after Germany's defeat during the First World War. Schweitzer considered himself French, and wrote mostly in German. His mother-tongue was Alsatian, a Germanic dialect, although he was also fluent in French and German.