The Commonwealth was run by the nobility , through a system of a central parliament and local assemblies , under elected kings .
The Union of Lublin of 1569 established the Polish -- Lithuanian Commonwealth , a federal state replacing the previous dynastic union of the two nations .
The state was run by the nobility , through a system of a central parliament and local assemblies , under elected kings .
The Union of Lublin of 1569 established the Polish -- Lithuanian Commonwealth , a federal state replacing the previous dynastic union of the two nations .