The Battle of Catalán was fought between the Luso-Brazilian forces under the command of Luís Teles da Silva Caminha e Meneses, the Marquis of Alegrete, and the artiguistas commanded by Andrés Latorre in Arroyo Catalán, present-day Uruguay.
The troops under the command of the Marquis of Alegrete and the Count of São João das duas Barras consisted of 1,200 soldiers of infantry, cavalry and artillery of the São Paulo Legion (Portuguese: Legião de São Paulo) from the Brazilian province of São Paulo, 1,300 soldiers of cavalry from the Brazilian São Pedro do Rio Grande do Sul province and 11 cannons.
The battle ended with a Luso-Brazilian victory.
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Text from the Wikipedia article “Battle of Catalán”, available under CC BY-SA 4.0.