Pope Paul VI ( Latin : Paulus VI ) , born Giovanni Battista Enrico Antonio Maria Montini ( 26 September 1897 - 6 August 1978 ) , was Pope from 21 June 1963 to his death in 1978 .
VI ; Italian : Paolo VI ) , born Giovanni Battista Enrico Antonio Maria Montini , was an Italian priest of the Roman Catholic Church and the 263rd Pope from from 1963 until his death in 1978 .