By the War of the Fifth Coalition in 1809, the 12-pounders could be found in the corps reserve artillery. At the Battle of Wagram the corps artillery was made up of the following numbers of 12-pounders. The Imperial Guard artillery included three companies each with six 12-pounders. The II Corps had three companies each with six 12-pounders and two 24-pounder howitzers. The III Corps reserve consisted of three companies each with six 12-pounders; two companies were armed with two 6-inch howitzers while the third had two 24-pounder howitzers. In the IV Corps there was one company with eight 12-pounders. The Army of Italy had one company with six 12-pounders and two 6-inch howitzers. Protecting the French base on Lobau Island was a large mass of guns under Jean Reynier including two companies each with six 12-pounders and two 24-pounder howitzers and one company with six 12-pounders.