 Complete the following phrase:  Dumouriez was born in Cambrai, on the Scheldt River in northern France, to parents of noble rank. His father, Antoine-François du Périer, served as a commissary of the royal army, and educated his son most carefully and widely. The boy continued his studies in Paris at the Lycée Louis-le-Grand, and in 1757 began his military career as a volunteer in the campaign of 