Educated Colegio Azeredo, Belo Horizonte, 1912-1913, Ginásio de Ouro Preto, 1914-1915, Ginásio Mineiro, Belo Horizonte, 1916-1917. Bachelor of Laws, University de Minas Gerais, 1922.
As President of the Chamber of Deputies he witnessed the coup d"état that installed the fascist-like dictatorship of the Estado Novo in Brazil. Aleixo was the last Vice President to behold the office of President of the Senate. He was removed from the Vice Presidency on 6 October 1969 by the Brazilian Military Junta of 1969 that at the time was acting in the Presidency due to Costa e Silva"s disease.
In 2011, pursuant to Law Nº 12.486, dated 12 September, the name of the citizen Pedro Aleixo was included in the gallery of those who were anointed by the Brazilian Nation to the Supreme Magistracy.
This means that he should be considered an ex-president, for all legal purposes.
Member consulting council of Minas Gerais. 1932, later its president. Member: Institute da Ordem dos Advogados (ex-president), Automóvel Clube, Minas Tenis Clube.