At its height, it held the cities of Smolensk and Kiev.
Its founder is considered to be Mindaugus, who received a crown from Pope Innocent IV in 1253. Because its nobles desired aid in the Livonian War, it lost its independence in the Commonwealth of Two Peoples, also known as the Union of Lublin, in 1569. At its height, it held the cities of Smolensk and Kiev. For ten points, name this grand duchy, whose great leaders included Vytautus and Jagiello, before it lost its independence to Poland.
Its founder is considered to be Mindaugus, who received a crown from Pope Innocent IV in 1253.
Lithuania