Samogitia or Žemaitija is one of the five cultural regions of Lithuania and formerly one of the two core administrative divisions of the Grand Duchy of Lithuania alongside Lithuania proper. Žemaitija is located in northwestern Lithuania. Its largest city is Telšiai, while Šiauliai, where Aukštaitian dialect is being spoken, is sometimes also included into Samogitia. Samogitia has a long and distinct cultural history, reflected in the existence of the Samogitian language.