Medieval silver coin of the Grand Duchy of Lithuania poluhros. Pursuit of a knight 1550 The Great Principality of Litovskoe, Russkoye and Zhemoytskoye[6] (in Russian). Grand Duchy of Lithuania, Russian, Jomoitian, Lat. Magnus Ducatus Lithuaniae, Polish. Wielkie Księstwo LitewskieEastern European state, which existed from the middle XIII from the 20th century to 1795 in modern Lithuania (except Klaip "da region), Belarus, Ukraine (most of it before 1569), Russia (western lands including Smolensk, Bryansk and Kursk). XVII Poland (Podlyashye, before 1569), Latvia (partially, from 1561), Estonia (southern part, from 1561 to 1629) and Moldova (left bank of Moldavian Transdniestria, until 1569). The vast lands of Russia, which fell under the rule of the Grand Duchy of Lithuania and made up the lion's share of its territory, are called Lithuanian Rus. From 1386 the Grand Duchy of Lithuania was in personal union with the Kingdom of Poland, and from 1569 - also in the Sejm Union with Poland as part of the confederal Polish-Lithuanian Commonwealth. In the XV-XVI centuries, the Grand Duchy of Lithuania is a rival of the Russian state in the struggle for dominance on the lands of Russia and in Eastern Europe as a whole. It ceased to exist after the third partition of the Polish-Lithuanian Commonwealth in 1795.