Eamon de Valera
The cell in which Eamon de Valera was held at Kilmainham Gaol - Credit: Hunter Kahn
was a giant in Irish politics for over half a century. Serving multiple terms as the head of government and head of state, he is credited with a leading role in the development of the Constitution of Ireland. De Valera was an important leader of the Irish struggle for independence from the United Kingdom, and the anti-Treaty opposition in the Irish Civil War. He founded Fianna Fail in 1926, the largest political party in Ireland.