[1] Charles-Auguste Creutzer was born on 1 April 1780 in Deux-Ponts (French derivation, more commonly known as Zweibrücken, now in the Rhineland-Palatinate in Germany) which passed from the Palatinate-Birkenfeld-Zweibrücken at the time of his birth to Bavaria in 1799.
On 19 June, in an attack on the village of Schowningen he charged the enemy with 5 hussars and captured 16 soldiers, including an officer, earning him yet another promotion, this time to second lieutenant (sous-lieutenant) on 23 June (provisionally, confirmed by the Consulate on 12 December 1800) by Jean Victor Marie Moreau, the commanding general.
[2] Creutzer next became an aide de camp to General Gudin 20 July 1800 (provisionally, confirmed on 20 July 1801), a lieutenant 10 July 1801, served in the Army of the Coast (L'armée des côtes de l'Océan) 1804–1805, with the Grand Army (Grande Armée) 1805–1807 (promoted to Captain 4 March 1807), with the Army of Germany (L'armée d'Allemagne) in 1808, where he was promoted to colonel (chef d'escadron) on 16 June 1809.
He returned to service in 1816 as an inspector of infantry, served as such on the General Staff from 30 December 1818 through 16 June 1819 and was placed on the available (disponible) list on 1 January 1820, where he remained without position until after the July Revolution in 1830.
[2] Creutzer's sister, Jeanne Caroline Christine married the Napoleonic general from an aristocrat background Charles-Étienne Gudin de La Sablonnière (1768–1812).