Ham

a town in France, department of Somme, on the river of that name, 12 miles S. W. of St. Quentin. Its ancient fortre or castle was rebuilt by the Comte de Saint Pol in 1470, and now is used as a state prison. It is memorable as the place of confinement of Joan of Arc, Moncey, and others; of Louis Napoleon from 1840 till 1846, and others.