Prussia and its changes is also a source for situation of Lithuanians. The nationality of the residents of the country of Lithuania Minor is best shown by the sources from the fourth decade of the 18th century. In the process of the colonization of Lithuania Minor the order to check the circumstance of the state peasants was issued. The data showed the distribution by nationalities and the number of state peasants in the Lithuanian Province. The data was used by M. Beheim-Svarbach, who published the tabulations of the territorial distribution of Lithuanian and German villeins (having their farm) in all the villages and districts of Lithuanian Province. The data from the lists of colonists, which shown their descent, was published by G. Geking, G. Schmoler, A. Skalveit in their researches. Lietuvininkai The ethnic Lithuanian inhabitants of Lithuania Minor called themselves Lietuvininkai (other form Lietuvninkai). L. Baczko wrote around the end of the 18th century: The historical sources indicate that Lietuvininkai is one of two historical ways to call all Lithuanians. Lietuvninkai (Литовники) are mentioned in the recording (1341) of the second chronicle of Pskov. In what had been the Grand Duchy of Lithuania, the word lietuvis became more popular, while in Lithuania Minor lietuvininkas was preferred. Prussian Lithuanians also called their northern neighbors in Samogitia "Russian Lithuanians" and their south-eastern neighbors of the Suwałki region "Polish Lithuanians". Some sources used the term Lietuvininkai to refer to any inhabitant of Lithuania Minor irrelevant of their ethnic adherence. Lithuanian population presumably grew after the wars ended with the Treaty of Melno in 1422. The Samogitian newcomers were more common in the northern part of it and Aukštaitian in the western one. Lithuanians lived mostly in the rural areas. German towns were like islands in the Lithuanian Province. The area was overwhelmingly inhabited by Lithuanians until the plague of 1709–1711. Up to 300,000 people resided in the Lithuanian Province and the Labguva district prior to the plague, during which about 160,000 Lithuanians died in Lithuanian Province and Labguva district, which was 53 percent of the population of the latter area. Ethnic situation during the 19th century As a result of the plague of 1709–1711, German colonization and Germanisation policies, the ethnic composition of the region in the 19th centuries changed to the disadvantage of the Lithuanians and Poles and in favor of the Germans. According to Prussian data from 1837, ethnic Lithuanians still