Jacinto Roque de Sena Pereira ( 1784 – 27 June 1850) was a Portuguese-born Brazilian sailor notable for his service to the

United Kingdom of Portugal, Brazil and the Algarves The United Kingdom of Portugal, Brazil and the Algarves was a pluricontinental monarchy formed by the elevation of the Portuguese colony named State of Brazil to the status of a kingdom and by the simultaneous union of that Kingdom of Brazil ...

and later the

Empire of Brazil The Empire of Brazil was a 19th-century state that broadly comprised the territories which form modern Brazil and (until 1828) Uruguay. Its government was a representative parliamentary constitutional monarchy under the rule of Emperors Dom ...

. His naval career culminated with a period of squadron command. For nearly a decade he was in charge of a squadron on the

Uruguay River The Uruguay River ( es, Río Uruguay, ; pt, Rio Uruguai, ) is a major river in South America. It flows from north to south and forms parts of the boundaries of Brazil, Argentina, and Uruguay, separating some of the Argentine provinces of La M ...

, using the schooner ''Oriental'' as his flagship. He prepared for the Portuguese invasion of 1816, which resulted in the defeat of the troops led by

José Gervasio Artigas José Gervasio Artigas Arnal (; June 19, 1764 – September 23, 1850) was a political leader, military general, statesman and national hero of Uruguay and the broader Río de la Plata region. He fought in the Latin American wars of in ...

and the annexation of the

Banda Oriental Banda Oriental, or more fully Banda Oriental del Uruguay (Eastern Bank), was the name of the South American territories east of the Uruguay River and north of Río de la Plata that comprise the modern nation of Uruguay; the modern state of Rio Gr ...

to the

Kingdom of Brazil The Kingdom of Brazil ( pt, Reino do Brasil) was a constituent kingdom of the United Kingdom of Portugal, Brazil, and the Algarves. Creation The legal entity of the Kingdom of Brazil was created by a law issued by Prince Regent John of Port ...

as the

Cisplatina Cisplatina () was a Brazilian province in existence from 1821 to 1828 created by the Luso-Brazilian invasion of the Banda Oriental. From 1815 until 1822 Brazil was a constituent kingdom of the United Kingdom of Portugal, Brazil and the Alg ...

province. He was considered a consummate planner, especially in the area of combined operations with land forces. His personality, education, and intelligence led him to be involved in many activities, such as diplomacy. Similar to many Portuguese soldiers active in the Cisplatina province, he married a woman from the region, Eugenia Gadea Paredes from the Soriano Department. During the

Cisplatine War The Cisplatine War (), also known as the Argentine-Brazilian War () or, in Argentine and Uruguayan historiography, as the Brazil War (''Guerra del Brasil''), the War against the Empire of Brazil (''Guerra contra el Imperio del Brasil'') or t ...

, he was named commander of the Third Division, the Brazilian naval squadron in the Uruguay River. He suffered a major defeat against admiral William Brown in the

Battle of Juncal The naval Battle of Juncal took place between a squadron of the newly independent United Provinces of the River Plate under command of William Brown and a squadron belonging to the Brazilian Empire, commanded by Sena Pereira. It spanned two ...

, after which he was taken prisoner. After refusing to give an oath of submission, he succeeded in escaping, and in 1829 he was one of those who entered the plaza of

Montevideo Montevideo () is the capital and largest city of Uruguay. According to the 2011 census, the city proper has a population of 1,319,108 (about one-third of the country's total population) in an area of . Montevideo is situated on the southern ...

as a result of the Preliminary Peace Convention. He died extremely poor, at the age of 66.

References

{{DEFAULTSORT:Pereira, Jacinto Roque De Sena 1780s births 1850 deaths People from Lisbon 18th-century Portuguese people 19th-century Portuguese people Portuguese emigrants to Brazil