Question: Who was noted for their long resistance (1219–1290) against the German crusaders and Teutonic Knights during the Northern Crusades, who had a duke in the second half of the 13th century who uled in the western part of Semigallia?
Sentence (from "Drang nach Osten"): The term became a motto of the German nationalist movement in the late nineteenth century.
Relevant evidence: No