[2] During his student years, he was a supporter of republicanism and briefly of anarcho-syndicalism,[2] but by 1911 he had become a strong advocate of monarchism and Catholicism, partly because of the influence of his highly conservative mother.
[6] Under Sardinha's direction the movement converted from being a group of monarchist nostalgics into a coherent ideology that hoped to establish a new era in Portuguese history under the leadership of a strong centralised monarchy.
[2] Unlike some of his contemporaries Sardinha considered a close relationship to Spain to be of central importance for Portugal and he also took an internationalist view in general, hoping to see similar integralisms develop elsewhere, particularly in Brazil where that proved to be the case.
[10] Drawing from traditional monarchism, Hispanidad, ruralism, Integralism, scientific racism, fascism and national syndicalism he had created a complex syncretic ideology that inevitably fissured into various factions after his death.
[5] Amongst his pet theories was that António de Araújo e Azevedo, 1st Count of Barca had collaborated with France during his time as Minister of Foreign Affairs during the Peninsular War.