Patrick John Hillery ( Irish : Pádraig J. Ó hIrghile ; 2 May 1923 - 12 April 2008 ) was an Irish politician and the sixth President of Ireland from 1976 until 1990 .
Dr Patrick John Hillery ( Irish : Pádraig Seán Ó hIrighile ; 2 May 1923 - April 12 , 2008 ) was an Irish Fianna Fáil politician and the sixth President of Ireland from 1976 until 1990 .