 Manuel Marques de Sousa was born on 13 June 1804 ( sometimes erroneously given as 1805 ) in Rio Grande . The town was located in Rio Grande do Sul , a southern captaincy ( later province ) of Brazil , then part of the Portuguese Colonial Empire . His parents were Manuel Marques de Sousa and <unk> <unk> da Silveira . He had four younger siblings : two sisters and two brothers . An archetypal leading family of Rio Grande do Sul , Marques de Sousa 's Portuguese @-@ descended family was wealthy and influential , owning ranches and huge cattle herds . His father and his paternal grandfather , both also named Manuel Marques de Sousa , were seasoned soldiers who took part in the colonial wars . His grandfather , the elder Marques de Sousa , was the wealthiest person in Rio Grande do Sul . 
