 Complete the following phrase:  The Citadelle Laferrière or, Citadelle Henri Christophe, or simply the Citadelle , is a large early 19th-century fortress situated on the Bonnet à lEvêque mountaintop in Nord, Haiti. The imposing structure is located approximately south of the city of Cap-Haïtien, southwest of the Three Bays Protected Area, and uphill from the town of Milot. Commissioned by 