On 6 August 1919, António José de Almeida was elected the 6th President of the Republic, and was the only President of the First Republic, that completed the full four years mandate. He faced the greatest political instability of the regime and almost resigned. He was also remembered for his voyage to Brazil, in 1922, during the centennial of that country's independence from Portugal, where he was noted as a brilliant speaker.
Personal life
He married on 14 December 1910 to Maria Joana de Morais Perdigão Queiroga, daughter with her younger sisters Antónia and Catarina of Joaquim José Perdigão Queiroga (b. Évora) and first wife Maria Cândida de Morais and half-sister of Perdigão Queiroga. On 27 December 1911 they had an only daughter Maria Teresa Queiroga de Almeida, married to medical doctor Júlio Gomes da Cunha de Abreu.
^"With the proclamation of the Republic and the installment of the first provisional government, which was led by Teófilo Braga with António José de Almeida as Interior Minister and Afonso Costa as Minister of Justice, all of whom were freemasons" A Shortened History of Freemasonry in Portugal, Petrestones Review