In 1802 he was arrested on the ground of being concernec in a plot of the Republicans against the Consulate, but he was released, though Napoleon continued to regard him as an opponent of the established regime. After a term of duty with the army in Santo Domingo he participated in the campaigns of 1806-7, and from 1808 to 1811 he was employed in the Peninsular War.
In the Russian War of 1812 he was wounded anc made prisoner. At the end of two years of captivity he returnee to France at the general peace, was aide-de-camp to Marshal Davout during the Hundred Days, and thereafter passed into retirement, from which he did not emerge till 1830. He attained the rank of marechal-de-camp under Louis Philippe.
His younger brother, JBAM de Marbot was also a military man of some note.
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