Cearbhall Ó Dálaigh ( 12 February 1911 -- 21 March 1978 ; ) served as the fifth President of Ireland , from 1974 to 1976 .
Cearbhall Ó Dálaigh ( 12 February 1911 -- 21 March 1978 , IPA : [ ` caɾˠwaɫ̪ o : 'd ˠa : ɫ̪i ] ) served as fifth President of Ireland , from 1974 to 1976 .