Kingdom of Lithuania (1918)
The Kingdom of Lithuania was a short-lived constitutional monarchy created towards the end of World War I when Lithuania was under occupation by the German Empire. The Council of Lithuania declared Lithuania's independence on February 16, 1918, but the Council was unable to form a government, police, or other state institutions due to the continued presence of German troops. The Germans presented various proposals to incorporate Lithuania into the German Empire, particularly Prussia. The Lithuanians resisted this idea and hoped to preserve their independence by creating a separate constitutional monarchy. On June 4, 1918, they voted to offer the Lithuanian throne to the German noble Wilhelm, 2nd Duke of Urach. Duke Wilhelm accepted the offer in July 1918 and took the name Mindaugas II. However, he never visited Lithuania. His election stirred up controversy, divided the Council, and did not achieve the desired results. As Germany was losing the war and was engulfed in the German Revolution, Lithuania suspended its decision to invite Duke William on November 2, 1918, thereby ending his short reign.
National Museum of Lithuania
The Museum of Antiquities in Vilnius, founded by Eustachy Tyszkiewicz in 1855, was the forerunner of today's museum. At its inception, the museum focused on the culture and history of the Lithuanian Grand Duchy. Made up mostly of Polish private collections, it was quite popular and received many visitors. After the January Uprising of 1863, the Russian Empire moved much of the collection to Moscow; the remaining collections were re-organized and were incorporated into the Vilnius Public Libray. From 1866 to 1914, the museum and the library operated together. In 1915, when the Eastern Front of World War I approached Vilnius, more of the exhibits was taken to Russia. 
After Lithuanian independence was established in 1918, the Museum of History and Ethnography was founded, based on the collections in the Museum of Antiquities and the Lithuanian Scientific Society. Its director was Jonas Basanavičius, one of the signatories to the Act of Independence of Lithuania. After 1919, Vilnius became a part of Poland, and the organization was incorporated into Vilnius University.