List of rulers of Lithuania
The state of Lithuania formed in the 1230s, when threatened by the Livonian Order in the north and the Teutonic Knights in the west, the Baltic tribes united under the leadership of Mindaugas. He became the only crowned king of Lithuania. His state became known as Grand Duchy of Lithuania. After Grand Duke Jogaila became also king of Poland in 1386, the two states became closer connected and since 1440 both were ruled by a common ruler. In 1569 Union of Lublin was signed and a new entity—the Polish–Lithuanian Commonwealth—emerged. The commonwealth was partitioned in 1795 and Lithuania became part of the Russian Empire till 16 February 1918. The Council of Lithuania was able to establish the sovereignty only in 1919, after Germany lost World War I. The first republic of Lithuania existed until 1940 when it was occupied by the Soviet Union. During the Soviet-German War, Lithuania was occupied by Nazi Germany. In 1944, as Germany was losing the war, Russia re-occupied Lithuania and established the Lithuanian Soviet Socialist Republic. On 11 March 1990, Lithuania became the first Soviet republic to declare independence. The restored Republic of Lithuania is a democratic republic, a member of both the European Union and NATO.
Mindaugas
Lithuania was ruled during the early 13th century by a number of dukes and princes presiding over various fiefdoms and tribes. They were loosely bonded by commonalities of religion and tradition, trade, kinship, joint military campaigns, and the presence of captured prisoners from neighboring areas. Western merchants and missionaries began seeking control of the area during the 12th century, establishing the city of Riga, Latvia in 1201. Their efforts in Lithuania were temporarily halted by defeat at the Battle of Saule in 1236, but armed Christian orders continued to pose a threat. The country had also undergone incursions by the Mongol Empire.