The Grand Duchy of Lithuania was a sovereign state in northeastern Europe that existed from the 13th century, succeeding the Kingdom of Lithuania, to the late 18th century, when the territory was suppressed during the 1795 partitions of Poland–Lithuania. The state was founded by Lithuanians, who were at the time a polytheistic nation of several united Baltic tribes from Aukštaitija. By 1440 the grand duchy had become the largest European state, controlling an area from the Baltic Sea in the north to the Black Sea in the south.
The Battle of Saule was fought on 22 September 1236, between the Livonian Brothers of the Sword and pagan troops of Samogitians and Semigallians. Between 48 and 60 knights were killed, including the Livonian Master, Volkwin. It was the earliest large-scale defeat suffered by the orders in Baltic lands. The Sword-Brothers, the first Catholic military order established in the Baltic lands, was soundly defeated and its remnants accepted incorporation into the Teutonic Order in 1237. The battle inspired rebellions among the Curonians, Semigallians, Selonians and Oeselians, tribes previously conquered by the Sword-Brothers. Some thirty years' worth of conquests on the left bank of Daugava were reversed. To commemorate the battle, in 2000 the Lithuanian and Latvian parliaments declared 22 September to be the Baltic Unity Day.
Semigallians were the Baltic tribe that lived in the south central part of contemporary Latvia and northern Lithuania. They are noted for their long resistance (1219–1290) against the German crusaders and Teutonic Knights during the Northern Crusades. Semigallians had close linguistic and cultural ties with Samogitians.
Traidenis was Grand Duke of Lithuania from 1269 or 1270 until 1282. He is the second most prominent grand duke of Lithuania in the 13th century after Mindaugas. His reign ended a seven-year unrest period after Mindaugas was assassinated in 1263 and firmly established the Grand Duchy as a pagan state for another hundred years.
Semigallia, also spelt Semigalia, is one of the Historical Latvian Lands located to the south of the Daugava river and to the north of the Saule region of Samogitia. The territory is split between Latvia and Lithuania, previously inhabited by the Semigallian Baltic tribe. They are noted for their long resistance (1219–1290) against the German crusaders and Teutonic Knights during the Northern Crusades. Semigallians had close linguistic and cultural ties with Samogitians.
Lithuania proper refers to a region that existed within the Grand Duchy of Lithuania where the Lithuanian language was spoken. The primary meaning is identical to the Duchy of Lithuania, a land around which the Grand Duchy of Lithuania evolved. The territory can be traced by Catholic Christian parishes established in pagan Baltic lands of the Grand Duchy of Lithuania subsequent to the Christianization of Lithuania in 1387. Lithuania proper was always distinguished from the Ruthenian lands since the Lithuanians differed from the Ruthenians in their language and faith. The term in Latin was widely used during the Middle Ages and can be found in numerous historical maps until World War I.
The Battle of Skuodas or Schoden was a medieval battle fought in ca. 1259 near Skuodas in present-day Lithuania during the Lithuanian Crusade. The Samogitian army of 3,000 invaded Courland and on their way back defeated the Livonian Order, killing 33 knights and many more low-rank soldiers. In terms of knights killed, it was the eighth largest defeat of the Livonian Order in the 13th century. This victory led to a Semigallian insurrection against the Livonian crusaders, which lasted from 1259 to 1272.
The Battle of Durbe was a medieval battle fought near Durbe, 23 km (14 mi) east of Liepāja, in present-day Latvia during the Livonian Crusade. On 13 July 1260, the Samogitians soundly defeated the joint forces of the Teutonic Knights from Prussia and the Livonian Order from Livonia. Some 150 knights were killed, including Livonian master Burkhard von Hornhausen and Prussian land marshal Heinrich Botel. It was by far the largest defeat of the knights in the 13th century: in the second-largest, the Battle of Aizkraukle, 71 knights were killed. The battle inspired the Great Prussian Uprising and the rebellions of the Semigallians, the Couronians, and the Oeselians. The battle undid two decades of Livonian conquests and it took some thirty years for the Livonian Order to restore its control.
Edvardas Gudavičius was a Lithuanian historian. He was known as one of the best historians in Lithuania specializing in the early history of Grand Duchy of Lithuania and is an author of many publications.
The Livonian crusade consists of the various military Christianisation campaigns in medieval Livonia – modern Latvia and Estonia – during the Papal-sanctioned Northern Crusades in the 12th–13th century. The Livonian crusade was conducted mostly by the Holy Roman Empire and the Kingdom of Denmark. It ended with the creation of Terra Mariana and the Danish duchy of Estonia. The lands on the eastern shores of the Baltic Sea were one of the last parts of Europe to be Christianised. The available information is largely based on Livonian Chronicle of Henry.
The Battle of Karuse or Battle on the Ice was fought on 16 February 1270 between the Grand Duchy of Lithuania and the Livonian Order on the frozen Baltic Sea between the island of Muhu and the mainland. The Lithuanians achieved a decisive victory. The battle, named after the village of Karuse, was the fifth-largest defeat of the Livonian or Teutonic Orders in the 13th century. Almost all that is known about the battle comes from the Livonian Rhymed Chronicle, which devoted 192 lines to the battle.
The Battle of Krücken was a medieval battle fought in 1249 during the Prussian Crusades between the Teutonic Order and Prussians, one of the Baltic tribes. In terms of knights killed, it was the fourth largest defeat of the Teutonic Knights in the 13th century.
Diwanus was the leader (capitaneus) of the Bartians, one of the Prussian clans, during the Great Prussian Uprising (1260–1274) against the Teutonic Knights. He was son of Kleckis and therefore is sometimes referred to by a nickname derived from the word bear.
Nalšia or Nalšėnai was an ancient land in the early stages of the Grand Duchy of Lithuania. It is mentioned in written sources from 1229 to 1298. The references to it cease as it was fully incorporated into the Grand Duchy. While it is known that it was on the north-eastern border of Lithuania proper, the exact location is unknown and is debated among historians. It is believed that Nalšia was between Livonia and the Duchy of Lithuania and bordered Deltuva. Towns of Švenčionys and Utena are often identified as the most prominent settlements in the land. Several dukes of Nalšia are known. The most prominent of them was Daumantas of Pskov. Others were Lengvenis, nephew of Mindaugas, Suksė (Suxe), who defected to the Teutonic Knights, and Gerdenis, rival to Daumantas.
Duchy of Trakai was a subdivision of the Grand Duchy of Lithuania during the 14th and early 15th centuries. The Duke of Trakai was an important position held either by the Grand Duke of Lithuania himself or his second-in-command.
The Battle of Turaida or Treiden was fought on June 1, 1298, on the banks of the Gauja River near the Turaida Castle. The Livonian Order was decisively defeated by the residents of Riga allied with the Grand Duchy of Lithuania under command of Vytenis.
The history of Lithuania between 1219 and 1295 concerns the establishment and early history of the first Lithuanian state, the Grand Duchy of Lithuania. The beginning of the 13th century marks the end of the prehistory of Lithuania. From this point on the history of Lithuania is recorded in chronicles, treaties, and other written documents. In 1219, 21 Lithuanian dukes signed a peace treaty with Galicia–Volhynia. This event is widely accepted as the first proof that the Baltic tribes were uniting and consolidating. Despite continuous warfare with two Christian orders, the Livonian Order and the Teutonic Knights, the Grand Duchy of Lithuania was established and gained some control over the lands of Black Ruthenia, Polatsk, Minsk, and other territories east of modern-day Lithuania that had become weak and vulnerable after the collapse of Kievan Rus'.
The Battle of Memel was fought between the Samogitians and the Livonian Order in 1257 near Memel.
Nameisis or Namejs was a Semigallian duke in the second half of the 13th century. He ruled in the western part of Semigallia, with his capital at Tērvete. In 1279–81, he led a Semigallian uprising against the Livonian Order, a crusading military order. Very little is known about his life. He is mentioned only in the Livonian Rhymed Chronicle and in some documents from the 14th century. For this reason he is sometimes referred as semi legendary ruler in Latvian historiography.
