[1] Over the course of the 1810s Rodrigues took part in several battles, most notably Bussaco, Fuentes de Oñoro, Ciudad Rodrigo, Badajoz, Orthez and Toulouse.

[1] On 22 June 1818 he was promoted to lieutenant colonel,[1] disembarking on Rio de Janeiro that same year, in command of the first battalion of Caçadores of the Division of Royal Volunteers.

[1][3] On 26 February 1826, during the Cisplatine War between the Empire of Brazil and the United Provinces of the Río de la Plata, Argentine admiral William Brown attempted to take Colonia del Sacramento with a large ship squadron and combining his actions with Juan Antonio Lavalleja, who was sieging the town on land.

Jorge Rodrigues was dismissed from his office in November 14 of that same year, retiring to the court in Rio de Janeiro and being commissioned to the rank of lieutenant general.

Elzeário was dismissed from the command-in-chief of the Brazilian army in the south, and, by decree of 23 May 1839, lieutenant general Manuel Jorge Rodrigues was appointed to substitute him.

Rodrigues embarked for the province of Rio Grande do Sul, immediately assuming command of its high position in July, and by decree of 2 December 1839, he was promoted to lieutenant general effective.

[1] Manuel Jorge Rodrigues was granted the title of Baron of Taquari by decree of 25 March 1845 in reward for the long services he had rendered.