Napoleon & Chaptal Decree - Fifteen Museums

We owe to the French Revolution the Louvre becoming a museum after being one of the Kings' palaces, thus making works of art accessible to anyone. But at that stage, that was the only museum in France.

Within two years of being in power, Napoleon changed that. On 31 August 1801, the Chaptal decree (named after Jean-Antoine Chaptal, Minister of Interior) created an additional fifteen museums located in the largest cities of the French territory.

This is how the following cities' population gained an equal access to Art: Lyon, Marseille, Bordeaux, Toulouse, Nantes, Lille, Strasbourg, Nancy, Dijon, Caen, Rouen and Rennes. Geneva, Brussels and Mayence (Mainz) which were then part of French territory also got their museums.

In the history of the world, how many "dictators" commissioned fifteen museums? For that matter, how many "heads of states" ever did?