Teutonic Order

Christianising mission of The Teutonic Knights in the 13th century involved the Prussians, a tribe which controlled the amber trade along the Baltic. The Teutonic knights dealt with them in a most effective way: they eliminated them almost completely. Those who remained alive were forbidden to marry so that no further Prussian children would be forthcoming. Centuries later, when Prussia was a proud and famous name among Europeans, there was hardly a true Prussian alive, and the archaic Prussian language slowly died out under Teutonic occupation.

The Teutonic Knights continued their occupations and captured Pomorze (1308-1309), Chelmno, Kujawa, Dobrzyn, and Kalisz in Poland. Every time Polish land was captured, the population was massacred, and Germans were brought to live in the captured lands. In 1308 when the knights marched on Gdansk singing "Jesu Christo Salvator Mundi" they killed most of the Polish citizens, about ten thousand in number, and replaced them with German immigrants, who gave them full allegiance.That same year the biggest, most powerful fort in Europe was finished, Malbork - built by the Knights in the occupied Prussian area.

The 14th century Order's attacks were mainly against the pagan Prussian States, combining the mission to spread Christianity, and the desire to capture Zmudz' lands, especially the area around Zemaitija ( or Samogitia). The Knights of the Teutonic Order needed reinforcements to fight effectively in this region. Well-armed knights from France, England, Luxembourg, Austria, Hungary, Bohemia and the Low Countries arrived every year to participate in "Lithuanian Crusades". Although these mercenaries were never allowed to become full members of the Teutonic Order, they were granted an honourable affiliation, and fought alongside the Teutonic Knights.

For two centuries, the Teutons(Krzyzacy) attacked, but the Lithuanians resisted hard.

http://grunwald.iatp.by/teut.htm

http://www.zum.de/whkmla/region/eceurope/teutord14.html

http://66.188.129.72:5980/History/PreModernEurope/pl-6greatwar.htm

http://members.shaw.ca/kblackley/tannen.html

http://www.inisfail.com/~ancients/teutonic.html