The third item is correctly matched. The National Convention was revolutionary France's third attempt at a national legislature. It was formed in September 1792. The Napoleonic Code was a unified legal code produced in the post-revolutionary France and enacted by Napoleon in 1804. The Tennis Court Oath was a pledge taken by the Third Estate deputies to the Estates General on June 20, 1789. The short-lived French Constitution of 1791 was the first written Constitution in France, created after the collapse of the absolute monarchy.