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?
Nameisis: Nameisis or Namejs (also Nameise, Nameyxe) was a Semigallian duke in the second half of the 13th century.
i don't know