Wrangel, Friedrich Heinrich Ernst, Graf von (frēˈdrĭkh hĪnˈrĭkh ĕrnst gräf fən vrängˈəl) [key], 1784–1877, Prussian field marshal. He fought in the Napoleonic Wars. In 1848 he commanded the German federal army sent to aid the primarily German provinces of Schleswig and Holstein in their revolt against Danish rule. In the same year he suppressed the revolutionists in Berlin. He commanded the Austro-Prussian troops in the first months of the war with Denmark in 1864.