[7] Margaron was wounded by a bullet at Novi and broke his right leg at Genola (Fossano) while completing a mission for Jean Étienne Championnet.

[9] Another source does not mention Marengo, but tells about an incident that occurred later in the campaign when Guillaume Brune was in command of the Army of Italy.

Margaron with only 200 horsemen and two artillery pieces was nearly surrounded by enemy cavalry that issued from the entrenched camp of Verona.

He led two vigorous charges and retook the village of San Massimo, driving back and capturing 100 enemy horsemen.

[2] At Austerlitz he commanded the IV Corps light cavalry brigade, which counted 12 squadrons from the 8th Hussar and the 11th and 26th Chasseurs à Cheval Regiments.

[2] At the Battle of Jena on 14 October 1806, Margaron led one of Soult's two IV Corps light cavalry brigades.

Surprised by French troops lunging at his left flank, Holtzendorff withdrew in good order, well covered by his cavalry.

After deploying his troops near the village of Nerkwitz, Holtzendorff found French infantry circling his left flank while Soult's cavalry charged from the front.

Margaron and Antoine Maurin led brigades in the 1,754-man cavalry division under François Étienne de Kellermann.

[14] With Spain's permission, Junot's force crossed the Bidasoa River on 18 October 1807 and was in Salamanca by 12 November, prepared to invade Portugal.

[15] Soon after Junot's corps launched the 1807 invasion of Portugal, logistical arrangements broke down and half the army's horses died.

[16] Soon afterward, Napoleon overthrew the Kingdom of Spain in a political and military coup; this proved in the long run to be a gigantic blunder.

[17] French Imperial troops which were supposed to be reinforcements for Junot's corps seized several key Spanish fortresses during February 1808.

[18] By trickery Napoleon deposed both King Charles IV and his son Prince Ferdinand and replaced them with his brother Joseph Bonaparte.

[21] The Portuguese revolt started in the north,[22] but on 16 June the rebels in the south captured Maurin and the handful of French soldiers guarding Faro.

[25] Margaron personally led the 86th Line Infantry Regiment in smashing through the Allied center and capturing three cannons.

[2] The defeated Allied infantry retreated to Évora which they and some poorly-armed townspeople tried to hold, but the French broke into the town and massacred 2,000 defenders.

At this moment, 240 troopers of the British 20th Light Dragoons charged, broke through the French cavalry and began cutting down the grenadiers.

When Margaron unleashed his last two regiments, the light dragoons were lucky to get away with only 21 killed, including Colonel Taylor, 24 wounded and 11 captured.