POLAND, PARTITIONS OF. The partitions of Poland, which ought to be known as the partitions of Poland-Lithuania, saw the removal from the map of one of Europe's largest states at the end of the eighteenth century (1772–1773, 1793, 1795). Executed by the Austrian, Prussian, and Russian monarchies, the causes and dynamics of the partitions have been the subject of debate in both Polish and European historiography. The Commonwealth of Poland-Lithuania had existed in dynastic union since 1385 under the Union of Krewo and in constitutional union since the Union of Lublin in 1569. However, the eighteenth century had seen the Commonwealth beset by problems, including the Great Northern War with Sweden (1700–1721), the War of the Polish Succession (1733–1738), and increasing international intervention in Polish and Lithuanian affairs. After the death of Augustus III (1696–1763; ruled 1734–1763; elected to the Polish-Lithuanian throne at Russian behest), Stanisław Augustus Poniatowski (1732–1798; ruled 1764–1795), the former lover of Empress Catherine the Great (1729–1796; ruled 1762–1796) of Russia, was elected king in September 1764.