High Quality Content by WIKIPEDIA articles! Saint-Arnoult is a commune in the department of Calvados in the Basse-Normandie region in northern France. The French department of Calvados is part of the region of Basse-Normandie in Normandy. It takes its name from a cluster of rocks off the coast.Calvados is one of the original 83 departments created during the French Revolution on March 4, 1790. It was created from a part of the former province of Normandy. The name "Orne inférieure" was originally proposed for the department, but it was ultimately decided to call the area Calvados.