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. He ruled in the western part of Semigallia, with his capital at Tērvete (present-day Latvia). In 1279–81, he led a Semigallian uprising against the Livonian Order, a crusading military order. Very little is known about his life. He is mentioned only in the Livonian Rhymed Chronicle and in some documents from the 14th century. For this reason he is sometimes referred as semi legendary ruler in Latvian historiography.
Prowincja A prowincja (] ; plural: "prowincje") was the largest territorial subdivision in medieval and Renaissance-era Poland, and later in the Polish-Lithuanian Commonwealth. The term designated each of the two largest constituents of the state: depending on the period, including "Wielkopolska" (Greater Poland), "Małopolska" (Lesser Poland) and (upon the formation of the Commonwealth) the Grand Duchy of Lithuania. Ducal Prussia was often counted as part of the Greater Poland; Inflanty (Livonia) as part of the Grand Duchy of Lithuania, and the Ruthenian territories were split between Lesser Poland and the Grand Duchy.