Jean-Pierre Doumerc (7 October 1767 – 29 March 1847), joined a French cavalry regiment at the beginning of the French Revolution and rose in rank to command a cuirassier regiment by the start of the First French Empire. During the Napoleonic Wars he first led cavalry brigades and later divisions in many of the important battles of the era. After retiring from the army in 1815, he briefly served again during the 1830s. Early career Born on 7 October 1767 at Montauban, France, Doumerc enlisted in a cavalry regiment when the French Revolution broke out. He steadily gained advancement during the French Revolutionary Wars and in 1803 he was awarded a Star of the Légion d'honneur. The following year, he became an Officer of the Légion d'honneur and was colonel of the 9th Cuirassier Regiment. He fought at the Battle of Austerlitz on 2 December 1805 and became a Commander of the Légion d'honneur soon afterward. During the battle, the 9th Cuirassiers served in Étienne Champion de Nansouty's 1st Heavy Cavalry Division. General officer Doumerc was appointed general of brigade on 31 December 1806, Baron of the Empire in 1808, and general of division on 30 November 1811. He led a heavy cavalry brigade in Nansouty's division at the Battle of Friedland on 14 June 1807. At the start of the War of the Fifth Coalition, Doumerc commanded a brigade in Nansouty's 1st Heavy Cavalry Division that included the 2nd Cuirassiers, 848 sabers, and his old 9th Cuirassiers, 875 sabers. Emperor Napoleon I of France assigned the division to an ad hoc corps led by Marshal Jean Lannes. In the Battle of Abensberg on 20 April 1809, the corps fell upon the brigades of Ludwig Thierry and Joseph, Baron von Mesko de Felsö-Kubiny near Rohr in Niederbayern. After initial resistance, the outnumbered and outgeneraled Austrians were soon fleeing down the road to Rottenburg an der Laaber with the cuirassiers slashing at the fugitives. Nansouty's division, less Antoine Louis Decrest de Saint-Germain's brigade, began pressing back Karl von Vincent's rear guard early on 21 April 1809. After a pause at mid-day, the French horsemen finally advanced and routed Vincent's cavalry which fled across the bridges of Landshut. The cuirassiers' role in the Battle of Landshut ended with the cavalrymen charging through the streets of the west bank suburb. Soon, infantry came up to occupy the town and later to successfully rush