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.
Mindaugas
Although his reputation was unsettled during the following centuries and his descendants were not notable, he gained standing during the 19th and 20th centuries. Mindaugas was the only King of Lithuania; while most of the Lithuanian Grand Dukes from Jogaila onward also reigned as Kings of Poland, the titles remained separate. Now generally considered the founder of the Lithuanian state, he is also now credited with stopping the advance of the Tatars towards the Baltic Sea, establishing international recognition of Lithuania, and turning it towards Western civilization. In the 1990s the historian Edvardas Gudavičius published research supporting an exact coronation date – 6 July 1253. This day is now an official national holiday in Lithuania, Statehood Day.