The 3rd (East Prussian) Cuirassiers “Count Wrangel” were a heavy cavalry regiment of the Royal Prussian Army. Formed in 1717 as a dragoons unit, the regiment was reorganized as cuirassiers in 1818. The regiment fought in the Silesian Wars, the War of the Sixth Coalition, the Austro-Prussian War, the Franco-Prussian War and World War I.