He became Prime Minister after the Noite Sangrenta (Bloody Night) terrorist assassinations of prominent state figures (including Prime Minister António Granjo) on 19 October 1921. A Freemason (like many of his colleagues), he was co-author, along with João Chagas, of the work História da Revolta do Porto (History of the Porto Revolt).
He took office as Prime Minister after the Noite Sangrenta attacks that targeted prominent government figures, including Prime Minister António Granjo, on October 19, 1921. As a Freemason, he collaborated with João Chagas on the book História da Revolta do Porto (History of the Porto Revolt).