Éamon de Valera new line. However, a vote to accept the Free State Constitution (contingent on the abolition of the Oath of Allegiance) narrowly failed. Soon afterward, de Valera resigned from Sinn Féin and seriously considered leaving politics. However, one of his colleagues, Seán Lemass, convinced de Valera to found a new republican party. In March 1926, with Lemass, Constance Markievicz and others, de Valera formed a new party, Fianna Fáil ("The Warriors of Destiny"), a party that was to dominate 20th-century Irish politics. While Sinn Féin still held to an abstentionist line, Fianna Fáil was dedicated to republicanising the Free State from
Éamon de Valera or any birth, baptismal, or death certificate information for anyone called Juan Vivion de Valera (nor for "de Valeros", an alternative spelling). On de Valera's original birth certificate, his name is given as George de Valero and his father is listed as Vivion de Valero. Although he was known as Edward de Valera before 1901, a fresh birth certificate was issued in 1910, in which his first name was officially changed to Edward and his father's surname given as "de Valera". As a child, he was known as "Eddie" or "Eddy". According to Coll, Juan Vivion died in 1885 leaving