For 10 points, name this Eastern European "Commonwealth" ruled jointly from Vilnius and Krakow.
The elected king of this state signed a "contract" with the nobles and the people called the Henrician Articles, reflecting a political system under which "the king reins and does not govern." Late in this state's existence, it promulgated the first codified constitution in modern European history, the May 3 Constitution. This state continued an earlier aristocratic political system of checks and balances called (*) Golden Liberty, which was controlled by nobles called szlachta. A predecessor to this state was created in the Union of Krewo. This state arose in the 1569 Union of Lublin, nearly 200 years after a personal union between two countries occurred when the Jagiellon dynasty came to power. For 10 points, name this Eastern European "Commonwealth" ruled jointly from Vilnius and Krakow.
The elected king of this state signed a "contract" with the nobles and the people called the Henrician Articles, reflecting a political system under which "the king reins and does not govern.
Poland-Lithuania Commonwealth [accept Polish-Lithuanian Commonwealth or other word forms; prompt on "Poland" or "Lithuania"]