Habert was elevated in rank to general of division on 25 June 1811 and appointed Baron of the Empire on 18 July. According to a 15 July 1811 return of Suchet's newly named Army of Aragon, Habert's division included 4,433 men in 11 battalions. Reorganized for the invasion of Valencia in September, his 3rd Division included the 2,119-strong brigade of Louis François Elie Pelletier Montmarie and the 1,340-man brigade of Nicolas Bronikowski d'Oppeln. Suchet reached the towering castle of Sagunto (Saguntum) on 23 September. After the garrison repelled two premature attacks, Blake arrived nearby with a relief army. On 25 October, the Spanish general attacked the French to open the Battle of Saguntum. Suchet deployed Habert's division on the left flank, next to the coast. Though outnumbered two-to-one, the French quickly routed Blake's left flank units, but the Spanish center and right fought stubbornly. Habert was forced to refuse his left flank to avoid being bombarded from the sea by enemy gunboats. After an intense struggle in the center, the Spaniards collapsed and ran. Habert wheeled his division to cut off their escape through the village of Puzzol, but the "Walloon Guards" Regiment bravely held the escape route open at great cost to themselves. The French inflicted over 6,000 casualties on their adversaries while losing 1,000 killed and wounded. The 2,500 defenders of Saguntum castle quickly capitulated.