Adam Mickiewicz,
Konrad Wallenrod: An Historical Poem
“ The Jagellons, and their more powerful vassals, became Poles; many Lithuanian princes adopted the Russian religion, language, and nationality. By these means the Grand Duchy of Lithuania ceased to be Lithuanian; the nation proper found itself within its former boundaries, its speech ceased to be the language of the court and nobility, and was only preserved among the common people. Litwa presents the singular spectacle of a people which disappeared in the immensity of its conquests, as a brook sinks after an excessive overflow, and flows in a narrower bed than before. ”
