Éamon de Valera Irish independence. He was arrested, sentenced to death but released for a variety of reasons, including the public response to the British execution of Rising leaders. He returned to Ireland after being jailed in England and became one of the leading political figures of the War of Independence. After the signing of the Anglo-Irish Treaty, de Valera served as the political leader of Anti-Treaty Sinn Fein until 1926, when he, along with many supporters, left the party to set up Fianna Fáil, a new political party which abandoned the policy of abstentionism from Dáil Éireann. From there, de Valera would
Constance Markievicz went on hunger strike. Within a month, she was released. She left Sinn Fein and joined the new Fianna Fáil party on its foundation in 1926, chairing the inaugural meeting of the new party in La Scala Theatre. In the June 1927 general election, she was re-elected to the 5th Dáil as a candidate for Fianna Fáil, which was pledged to return to Dáil Éireann, but died only five weeks later, before she could take her seat. Her fellow Fianna Fáil TDs signed the Oath of Fidelity to King George V and took their seats in the Dáil on 12