History of the Polish–Lithuanian Commonwealth (1569–1648) covers a period in the history of Poland and Lithuania, before their joint state was subjected to devastating wars in the middle of the 17th century. The Union of Lublin of 1569 established the Polish–Lithuanian Commonwealth, a more closely unified federal state, replacing the previously existing personal union of the two countries. The Union was largely run by the Polish and increasingly Polonized Lithuanian and Ruthenian nobility, through the system of the central parliament and local assemblies, but from 1573 led by elected kings. The formal rule of the proportionally more numerous than in other European countries nobility constituted a sophisticated early democratic system, in contrast to the absolute monarchies prevalent at tha