Cumann na Poblachta Cumann na Poblachta Cumann na Poblachta (; "League of the Republic" in English) was an Irish republican political party. The party was founded on 15 March 1922 by Éamon de Valera. It opposed the Anglo-Irish Treaty and was composed of the anti-Treaty wing of Sinn Féin. The party did contest the 1922 Irish general election but, in accordance with the Collins/De Valera Pact, under the Sinn Féin banner like their opponents. The party commonly appended the title "The Republican Party" to its name. This subtitle was later adopted by the Fianna Fáil party at its foundation in 1926. Its headquarters
Éamon de Valera Éamon de Valera Éamon de Valera (; ; first registered as George de Valero; changed some time before 1901 to Edward de Valera; 14 October 1882 – 29 August 1975) was a prominent statesman and political leader in 20th-century Ireland. His political career spanned over half a century, from 1917 to 1973; he served several terms as head of government and head of state. He also led the introduction of the Constitution of Ireland. Prior to de Valera's political career, he was a Commandant at Boland's Mill during the 1916 Easter Rising, an Irish revolution that would eventually contribute to