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 assumed the position of Prime Minister following the Noite Sangrenta (Bloody Night) terrorist attacks that targeted prominent government officials, including Prime Minister António Granjo, on October 19, 1921. As a Freemason like many of his peers, he collaborated with João Chagas on the book História da Revolta do Porto (History of the Porto Revolt).