Philip II of France
In the History of Le Louvre, Phillippe Auguste built a Medieval Fortress, a keep, along a wall that he constructed around Paris for Protection. The Fortress was a prison and place to store the treasures of the city. Its position along the Seine allowed to view boats approaching Paris from the water, which was hard to defend. The foundation of the fortress is all that remains of the Fortress and can be toured at Le Louvre.