From the 18th century, it formed part of the Kingdom of Prussia. During the Seven Years' War, it was captured by Russia in 1757[10] and 1758, and then occupied by Russia until 1762. From 1871 it was also part of Germany. The Provincial Sanatorium and Nursing Institution Allenberg was a psychiatric hospital in Allenberg from 1852 to 1940. In the late 19th century, the town had a population of 2,200, and eight annual fairs were held there.[6] After World War II, the town was renamed to Druzhba.
^Meyers Großes Konversations-Lexikon (in German). Vol. 1. Leipzig. 1905. p. 345.{{cite book}}: CS1 maint: location missing publisher (link)
^ abSłownik geograficzny Królestwa Polskiego i innych krajów słowiańskich, Tom I (in Polish). Warszawa. 1880. p. 26.{{cite book}}: CS1 maint: location missing publisher (link)
^Górski, Karol (1949). Związek Pruski i poddanie się Prus Polsce: zbiór tekstów źródłowych (in Polish). Poznań: Instytut Zachodni. p. 11.
^Ciesielski, Tomasz (2010). "Prusy Wschodnie w trakcie polskiej wojny sukcesyjnej i wojny siedmioletniej". In Gieszczyński, Witold; Kasparek, Norbert (eds.). Wielkie wojny w Prusach. Działania militarne między dolną Wisłą a Niemnem na przestrzeni wieków (in Polish). Dąbrówno. p. 145. ISBN978-83-62552-00-9.{{cite book}}: CS1 maint: location missing publisher (link)