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 "Nameisis"): In 1279–81, he led a Semigallian uprising against the Livonian Order, a crusading military order.
Relevant evidence: No