Da•vout(da vo̅o̅′),USA pronunciationn.Louis Ni•co•las(lwē nē kô lä′),USA pronunciationDuke of Au•er•stadt(ou′ər stat′),USA pronunciationPrince of Eck•mühl(ek′myo̅o̅l),USA pronunciation 1770–1823, marshal of France: one of Napoleon's leading generals.