Ytororó order of battle

The following units and commanders of the Brazilian and Paraguayan armies fought in the Battle of Ytororó on December 6, 1866.

Brazilian Imperial Army

Marshal of the Army Luís Alves de Lima e Silva, Duke of Caxias

I Corps

General Jacinto Machado Bittencourt

Division	Brigade	Regiments and Others
5th Division Coronel Betbeze Olivera	4th Brigade Coronel Faria Rocha	25th Corpos de Voluntarios 29th Corpos de Voluntarios 33rd Corpos de Voluntarios
	9th Brigade Coronel Lourenco de Araujo	41st Corpos de Voluntarios 42nd Corpos de Voluntarios 46th Corpos de Voluntarios 51st Corpos de Voluntarios
	10th Brigade Coronel Luis de Albiquerque Maranchao	23rd Corpos de Voluntarios 47th Corpos de Voluntarios 50th Corpos de Voluntarios

II Corps

General Alexandre Gomes de Argolo Ferrao Filho

Division	Brigade	Regiments and Others
1st Division General Antunes Gurjao	1st Brigade Coronel Miranda Reis	4th Line Battalion 12th Line Battalion 16th Line Battalion
	8th Brigade Coronel Hermes de Fonesca	8th Line Battalion 10th Line Battalion 32nd Corpos de Voluntarios 38th Corpos de Voluntarios
	13th Brigade Coronel Barros de Vasconcelos	24th Corpos de Voluntarios 28th Corpos de Voluntarios 51st Corpos de Voluntarios
2nd Division General Salustiano des Reis	2nd Brigade Coronel Rodrigues Seixas	2nd Line Battalion 26th Corpos de Voluntarios 40th Corpos de Voluntarios
	5th Brigade Coronel Fernando Machado	1st Line Battalion 13th Line Battalion 34th Corpos de Voluntarios 48th Corpos de Voluntarios
Other	Cavalry Coronel Joao Niederauer Sobrinho	6th Provisional Cavalry Corps 9th Provisional Cavalry Corps 13th Provisional Cavalry Corps 7th Provisional Cavalry Corps, one squadron 20th Provisional Cavalry Corps, one squadron
	Artillery Coronel Lobo d'Eca	2nd Provisional Horse Artillery Regiment

III Corps

General Manoel Louis Osorio

Division	Brigade	Regiments and Others
3rd Division General Jose Autoda Silva Guimares	3rd Brigade Coronel Pereira Carvalho	3rd Line Battalion 9th Line Battalion 14th Line Battalion 35th Corpos de Voluntarios
	7th Brigade Coronel Frederico de Mesquita	5th Line Battalion 39th Corpos de Voluntarios 31st Corpos de Voluntarios 55th Corpos de Voluntarios
4th Division General Herculano da Silva Pedra	11th Brigade Coronel Olivera Bueano	11th Line Battalion 27th Corpos de Voluntarios 32nd Corpos de Voluntarios 29th Corpos de Voluntarios
	12th Brigade Coronel Francisco Caldas	36th Corpos de Voluntarios 44th Corpos de Voluntarios 49th Corpos de Voluntarios

Paraguayan Army

Division	Brigade	Regiments and Others
Division General Bernardino Caballero	Cavalry General Bernardino Caballero	6th Cavalry Regiment 9th Cavalry Regiment 12th Cavalry Regiment 19th Cavalry Regiment 30th Cavalry Regiment
	Infantry Coronel Germano Serrano	2nd Infantry Battalion 3rd Infantry Battalion 20th Infantry Battalion 36th Infantry Battalion 37th Infantry Battalion 40th Infantry Battalion

Sources

• Warner, William. "Paraguayan Thermopylae: The Battle of Itororo", in Strategy & Tactics, issue 271 (November/December 2011).