Oswaldo Euclides de Souza Aranha was a Brazilian politician, diplomat and statesman, who came to national prominence in 1930 under Getúlio Vargas.

Getúlio Dornelles Vargas was a Brazilian lawyer and politician who served as the 14th and 17th president of Brazil, from 1930 to 1945 and from 1951 until his suicide in 1954. Due to his long and controversial tenure as Brazil's provisional, constitutional, dictatorial and democratic leader, he is considered by historians as the most influential Brazilian politician of the 20th century.