ROYALIST ARMY

Commander Brigadier Felix Maria Calleja del Rey
2nd in Command Brigadier de Flon, Count of Cadena.

ARTILLERY Commander Lt. Colonel Ramon Diaz de Ortega
10 Cannon, with 100 gunners

INFANTRY (2,000 men)
Regiment of Corona, 6 companies, Colonel Nicolas Iberri
Regiment of Grenadiers, composed of 2 Battalions with 4 companies in each. Colonel Jose Maria Jalon.
Light Infantry Battalion, "Patriots of San Luis", 4 companies, Colonel Juan Nepomuceno Oviedo.
Volunteer Companies of Celaya and Guanajuato, Captain Antonio Linares.

CAVALRY (3,000 men) Commander Brigadier Miguel de Emparan.
Dragoon Regiment of Spain, 1 squadron, Captain Gabriel Martinez.
Dragoon Regiment of Mexico, 4 squadrons, Captain, Baron de Antonnelli
Provincial Dragoon Regiment of San Carlos, 6 squadrons, Colonel Ramon Ceballos.
Provincial Dragoon Regiment of the Frontier, 2 squadrons, Comdte. M. Diaz de Solorzano
Provincial Dragoon Regiment of San Luis, 8 squadrons, Count de San Mateo Valparaiso
Provincial Dragoon Regiment of Puebla, 4 squadrons, Sgt. Major Miguel del Campo
Provincial Dragoon Regiment of Queretaro, less than a squadron, Colonel M. Pastor
Corps of Lancers, 4 squadrons, Captain Pedro Meneso.

INSURGENTS

(90,000 men)
Commanders, Padre Miguel Hidalgo y Costilla
General Ignacio Allende

ARTILLERY
95 cannon, (including 44 mountain guns)

INFANTRY
11,600 troops in two Battalions of 800 men in each.
60,000 Indians and Meztisos on foot, organised in Regiments but only armed with 1,400 muskets, the rest having machetes, slings and bows & arrows.

CAVALRY
20,000 men being made up from provincial rancheros, with a small number armed as lancers.

After this Royalist victory Hidalgo and Allende were captured and executed, having their heads cut off and exhibited on spikes. The Battle had lasted for 6 hours with the insurgents close to winning, when a lucky shot from the Royalist artillery ignited the insurgent ammunition dump, causing the dry grass to become a raging fire. Bringing panic to the poorly controlled followers of Hidalgo and Allende.