Context: East Prussia enclosed the bulk of the ancestral lands of the Baltic Old Prussians. During the 13th century, the native Prussians were conquered by the crusading Teutonic Knights. The indigenous Balts who survived the conquest were gradually converted to Christianity. Because of Germanization and colonisation over the following centuries, Germans became the dominant ethnic group, while Poles and Lithuanians formed minorities. From the 13th century, East Prussia was part of the monastic state of the Teutonic Knights. After the Second Peace of Thorn in 1466 it became a fief of the Kingdom of Poland. In 1525, with the Prussian Homage, the province became the Duchy of Prussia. The Old Prussian language had become extinct by the 17th or early 18th century.

Question: Who defeated the native Prussians during the 13 century?
Answer: Teutonic Knights

Question: The Balts were gradually converted into which religion?
Answer: Christianity

Question: Which ethnic group become dominant following the 13 century just a few hundred years later?
Answer: Germans

Question: What other groups during this period for form minorities?
Answer: Poles and Lithuanians

Question: Around when did the Old Prussian language become extinct?
Answer: 17th or early 18th century

Question: In what century did the Teutonic Knights originate?
Answer: Unanswerable

Question: What country did the Teutonic Knights come from?
Answer: Unanswerable

Question: In what year was the First Peace of Thorn?
Answer: Unanswerable

Question: What ethnic group dominated the Kingdom of Poland?
Answer: Unanswerable

Question: What language did the Teutonic Knights speak?
Answer: Unanswerable