Before the Louvre was a museum, it was a palace, and before that a fortress. But much earlier still, it was a place called le Louvre for reasons unknown. People had inhabited that spot for more than 6,000 years before King Philippe Auguste of France constructed a fortress there in 1191 to protect against English soldiers stationed in Normandy. Two centuries later, Charles V converted the fortress to one of his numerous royal palaces. After Louis XIV moved the royal residence to Versailles in 1682, the Louvre inherited the royal art collection, which then included the Mona Lisa, given to Francis by Leonardo da Vinci; just over a century later, during the French Revolution, the National Assembly established the Louvre as a museum to display the nation's treasures. Subsequent leaders of France, from Napoleon to Napoleon III to Francois Mitterand, put their stamp on the museum, expanding it into the extraordinary institution it has become.