Prussian Lithuanians
The Prussian Lithuanians, or Lietuvininkai (singular: Lietuvininkas, plural: Lietuvininkai), are Lithuanians, originally Lithuanian language speakers, who formerly inhabited a territory in northeastern East Prussia called Prussian Lithuania, or Lithuania Minor (Lithuanian: Prūsų Lietuva, Mažoji Lietuva, German: Preußisch-Litauen, Kleinlitauen), instead of the Grand Duchy of Lithuania and, later, the Republic of Lithuania (Lithuania Major, or Lithuania proper). Prussian Lithuanians contributed greatly to the development of written Lithuanian, which for a long time was considerably more widespread and in more literary use in Lithuania Minor than in Lithuania proper.