Síle de Valera Dublin, where she qualified as a career guidance teacher. De Valera comes from a famous political family; she is the granddaughter of Éamon de Valera, the founder of Fianna Fáil, former Taoiseach and third President of Ireland. She is a niece of the former TD Vivion de Valera and is a first cousin of Teachta Dála Éamon Ó Cuív. De Valera was first returned to Dáil Éireann in the Fianna Fáil landslide victory at the 1977 general election. She was elected for the Dublin County Mid constituency, which included the Tallaght area of County Dublin, being the youngest TD elected
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