Manuel Gomes da Costa

January 14, 1863 — December 17, 1929 — Lisbon, Portugal

Manuel de Oliveira Gomes da Costa was a Portuguese army general and politician whose military coup on 28 May 1926 toppled the First Portuguese Republic. He briefly served as president of Portugal in 1926, becoming the second head of the Ditadura Nacional before being ousted himself just weeks later. His actions set in motion the authoritarian rule that would define Portugal for decades.

Early Life and Military Career

Manuel Gomes da Costa was born on January 14, 1863, in Lisbon, Portugal, into a nation whose overseas empire and domestic politics were both in flux. He pursued a career in the Portuguese army, rising through the ranks over several decades of service. Much of his early professional life was spent in Portugal's African colonies, particularly Mozambique, where he took part in military campaigns to assert Portuguese colonial authority during the late nineteenth and early twentieth centuries. These postings gave him hands-on command experience in difficult, often violent conditions, and helped establish his reputation as a capable and resilient officer. His steady advancement through the officer corps positioned him, by the time of the First World War, as one of the more senior and respected commanders available to the Portuguese military, setting the stage for the far greater national prominence he would achieve during that global conflict and its turbulent aftermath in Portuguese domestic politics.

World War I and Rising Fame

Gomes da Costa's national reputation was cemented through his role with the Portuguese Expeditionary Corps (CEP), which fought alongside British and French forces on the Western Front during the First World War. He commanded troops during the brutal German offensive at the Battle of La Lys in April 1918, in which Portuguese forces suffered heavy losses but where his personal conduct and leadership under fire won him widespread admiration back home. Despite the tactical defeat, Gomes da Costa emerged from the war as something of a national hero, celebrated for his courage and command presence rather than the outcome of the battle itself. This wartime prestige translated directly into political capital. In the unstable years of Portugal's First Republic, marked by frequent changes of government, economic crisis, and social unrest, Gomes da Costa's standing as a decorated war hero made him an attractive figurehead for military factions seeking to intervene in civilian politics and restore order through force.

The 1926 Coup, Presidency, and Downfall

On May 28, 1926, Gomes da Costa led a military uprising that began in Braga and marched on Lisbon, swiftly overthrowing the parliamentary government of the First Republic. The coup installed a military dictatorship known as the Ditadura Nacional. After an initial period under General José Mendes Cabeçadas, Gomes da Costa pushed him aside in June 1926 and assumed the roles of both prime minister and president of Portugal. His hold on power proved remarkably brief: within weeks, fellow general Óscar Carmona maneuvered against him, and in early July 1926 Gomes da Costa was deposed and exiled to the Azores island of Terceira. Carmona went on to dominate Portuguese politics for decades, laying the groundwork for António de Oliveira Salazar's Estado Novo regime. Gomes da Costa lived out his remaining years largely removed from power, his political career effectively ended by the very forces of military ambition he had helped unleash. He died on December 17, 1929, in Lisbon, remembered as a transitional and destabilizing figure in Portugal's turn from republic to dictatorship.