Sinn Féin for nine years. (It merged with two other organisations to form Fine Gael in 1933.) Anti-Treaty Sinn Féin members continued to boycott the Dáil. At a special "Ard Fheis" in March 1926, de Valera proposed that elected members be allowed to take their seats in the Dáil if and when the controversial Oath of Allegiance was removed. When his motion was defeated, de Valera resigned from Sinn Féin; on 16 May 1926, he founded his own party, Fianna Fáil, which was dedicated to republicanising the Free State from within its political structures. He took most Sinn Féin TDs with him.
Fianna Éireann the Irish Free State in 1931. This was reversed when Fianna Fáil came to power in 1932, but re-introduced in 1938. During the splits in the Republican movement of the later part of the 20th century, the Fianna and Cumann na mBan supported Provisional Sinn Féin in 1969 and Republican Sinn Féin in 1986. The Fianna is a Proscribed Organisation in the United Kingdom under the Terrorism Act 2000. An earlier "Fianna" was organised "to serve as a Junior Hurling League to promote the study of the Irish Language" on 26 June 1902 at the Catholic Boys’ Hall, Falls Road,