The Łyna (; ; ; - ''Lava''), is a

river A river is a natural stream of fresh water that flows on land or inside Subterranean river, caves towards another body of water at a lower elevation, such as an ocean, lake, or another river. A river may run dry before reaching the end of ...

that begins in northern

Poland Poland, officially the Republic of Poland, is a country in Central Europe. It extends from the Baltic Sea in the north to the Sudetes and Carpathian Mountains in the south, bordered by Lithuania and Russia to the northeast, Belarus and Ukrai ...

's Warmian-Masurian Voivodeship and ends in

Russia Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...

Kaliningrad Oblast Kaliningrad Oblast () is the westernmost federal subjects of Russia, federal subject of the Russian Federation. It is a Enclave and exclave, semi-exclave on the Baltic Sea within the Baltic region of Prussia (region), Prussia, surrounded by Pola ...

. The Łyna is a

tributary A tributary, or an ''affluent'', is a stream or river that flows into a larger stream (''main stem'' or ''"parent"''), river, or a lake. A tributary does not flow directly into a sea or ocean. Tributaries, and the main stem river into which they ...

of the Pregolya River, and has a total length of 264 km (207 km in Poland and 57 km in Russia) and a basin area of 7,126 km² (5,298 km² in Poland). It is connected to Lake Mamry by the 18th-century Masurian Canal. The river's source is located near the village of Łyna in Masuria, Poland. It then flows through the regions of Warmia, Bartia and Nadrovia.

History

In historical terms, the river fell within the area of the medieval Monastic state of the Teutonic Knights established in the 13th century. In 1454, the adjacent territory was incorporated by King Casimir IV Jagiellon to the

Kingdom of Poland The Kingdom of Poland (; Latin: ''Regnum Poloniae'') was a monarchy in Central Europe during the Middle Ages, medieval period from 1025 until 1385. Background The West Slavs, West Slavic tribe of Polans (western), Polans who lived in what i ...

upon the request of the anti-Teutonic Prussian Confederation. It was confirmed as part of Poland after the subsequent Thirteen Years' War, the longest of all Polish–Teutonic wars, ended in 1466. Following the

First Partition of Poland The First Partition of Poland took place in 1772 as the first of three partitions that eventually ended the existence of the Polish–Lithuanian Commonwealth by 1795. The growth of power in the Russian Empire threatened the Kingdom of Prussia an ...

in 1772, the area was annexed by

Prussia Prussia (; ; Old Prussian: ''Prūsija'') was a Germans, German state centred on the North European Plain that originated from the 1525 secularization of the Prussia (region), Prussian part of the State of the Teutonic Order. For centuries, ...

and made part of the newly formed province of

East Prussia East Prussia was a Provinces of Prussia, province of the Kingdom of Prussia from 1772 to 1829 and again from 1878 (with the Kingdom itself being part of the German Empire from 1871); following World War I it formed part of the Weimar Republic's ...

in 1773, which from 1871 was also part of

Germany Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen States of Germany, constituent states have a total popu ...

. Following Germany's defeat in

World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...

, in 1945, it was split between Poland and the

Soviet Union The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...

in accordance with border changes promulgated at the Potsdam Conference.

Cities and towns

The largest city located on the Łyna is

Olsztyn Olsztyn ( , ) is a city on the Łyna River in northern Poland. It is the capital of the Warmian-Masurian Voivodeship, and is a city with powiat rights, city with county rights. The population of the city was estimated at 169,793 residents Olsz ...

, Poland. Cities and towns along the Łyna include:

References

Rivers of Poland Rivers of Kaliningrad Oblast {{Poland-river-stub