After the Battle of Waterloo and Napoleon's fall, Bourmont gave evidence that led to Ney's execution. After the Second Restoration, he was given command of the 16th infantry division in Besançon and took part in the Spanish campaign of 1823. King Charles X of France made him minister of war in 1829 and Marshal of France in 1830. He was commanding the Invasion of Algiers in 1830, involving the shipwreck of Dellys, when the July Revolution broke out in 1830. Bourmont refused to give his allegiance to the new King Louis Philippe and was dismissed from service.