Masurians in the context of High German

Mazovia or Masovia (Polish: Mazowsze [maˈzɔfʂɛ] ) is a historical region in mid-north-eastern Poland. It spans the North European Plain, roughly between Łódź and Białystok, with Warsaw being the largest city and Płock being the capital of the region. Throughout the centuries, Mazovia developed a separate sub-culture featuring diverse folk songs, architecture, dress and traditions different from those of other Poles.

Historical Mazovia existed from the Middle Ages until the partitions of Poland and consisted of three voivodeships with the capitals in Warsaw, Płock and Rawa. The main city of the region was Płock, which was even capital of Poland from 1079 to 1138; however, in Early Modern Times Płock lost its importance to Warsaw, which became the capital of Poland. From 1138, Mazovia was governed by a separate branch of the Piast dynasty and when the last ruler of the independent Duchy of Mazovia died, it was fully incorporated to the Polish Crown in 1526. During the Polish–Lithuanian Commonwealth over 20% of Mazovian population was categorized as petty nobility. Between 1816 and 1844, the Mazovian Governorate was established, which encompassed the south of the region along with Łęczyca Land and south-eastern Kuyavia. The former inhabitants of Mazovia are the Masurians, who since the Late Middle Ages settled in neighboring southern Prussia, a region later called Masuria, where they converted to Protestantism in the Reformation era, thus leaving Catholicism, to which their relatives from Mazovia still adhered.

The Masurian ethnolect (Masurian: mazurská gádkä; Polish: mazurski; German: Masurisch), according to some linguists, is a dialect group of the Polish language; others consider Masurian to be a separate language, spoken by the Masurian people in northeastern Poland.

The dialect belongs to the Masovian dialect group and is located in the part of Poland as well as parts of Siberia. It borders the Lubawa dialect to the far southwest, the Ostróda dialect and Warmia dialect to the west, the new mixed dialects to the north, the Suwałki dialect to the east, marginally the Podlachia dialect to the far east, and the Kurpie dialect and Far Mazovian dialect to the south.

The Masurian Lake District or Masurian Lake Land (Polish: Pojezierze Mazurskie) is a lake district in northeastern Poland within the geographical region of Masuria, in the past inhabited by Masurians who spoke the Masurian dialects. It contains more than 2,000 lakes. The district had been elected as one of the 28 finalists of the New 7 Wonders of Nature.

The Lakeland extends roughly 290 km (180 mi) eastwards from the lower Vistula to the Poland–Russia border, and occupies an area of roughly 52,000 square kilometres (20,000 sq mi). Administratively, the Lake District lies within the Warmian-Masurian Voivodeship. Small parts of the district lie within the Masovian and Podlaskie Voivodeships.