What is Éamon de Valera?
{{Infobox officeholder | honorific-prefix = [[His Excellency]] | name = Éamon de Valera | image = Éamon de Valera.jpg | caption = De Valera, photographed c.&nbsp;1922–30 | order = 3rd | office = President of Ireland | taoiseach = [[Seán Lemass]]<br>[[Jack Lynch]]<br>[[Liam Cosgrave]] | term_start = 25 June 1959 | term_end = 24 June 1973 | predecessor = [[Seán T. O'Kelly]] | successor = [[Erskine Hamilton Childers|Erskine H. Childers]] | office1 = 2nd [[Taoiseach]] | president1 = Seán T. O'Kelly | 1blankname1 = [[Tánaiste]] | 1namedata1 = Seán Lemass | term_start1 = 20 March 1957 | term_end1 = 23 June 1959 | predecessor1 = [[John A. Costello]] | successor1 = Seán Lemass | president2 = Seán T. O'Kelly | 1blankname2 = [[Tánaiste]] | 1namedata2 = Seán Lemass | term_start2 = 13 June 1951 | term_end2 = 2 June 1954 | predecessor3 = John A. Costello | successor3 = John A. Costello | president4 = [[Douglas Hyde]]<br>Seán T. O'Kelly | 1blankname4 = [[Tánaiste]] | 1namedata4 = Seán T. O'Kelly<br>Seán Lemass | term_start4 = 29 December 1937 | term_end4 = 18 February 1948 | predecessor4 = New office | successor4 = John A. Costello | office5 = [[List of Irish Leaders of the Opposition|Leader of the Opposition]] | president5 = Seán T. O'Kelly | taoiseach5 = John A. Costello | term_start5 = 2 June 1954 | term_end5 = 20 March 1957 | predecessor5 = John A. Costello | successor5 = John A. Costello | president6 = Seán T. O'Kelly | taoiseach6 = John A. Costello | term_start6 = 18 February 1948 | term_end6 = 13 June 1951 | predecessor6 = [[Richard Mulcahy]] | successor6 = John A. Costello | president7 = [[W. T. Cosgrave]] | term_start7 = 11 August 1927 | term_end7 = 9 March 1932 | predecessor7 = [[Thomas Johnson (Irish politician)|Thomas Johnson]] | successor7 = W. T. Cosgrave | office8 = [[Leader of Fianna Fái