Unique improvement of the French civilization. Requires Chivalry. * Constructed on: * Tile next to a luxury resource. Cannot be constructed next to another Chateau. (Sea-based luxuries are also eligible, as long as they border land tiles.) * Effect: * +1 Image:20xGold5.png Gold (+3 with Flight). * +2 Image:20xCulture5.png Culture (+3 with Flight). * +50% Defensive bonus for any unit on that tile.