1 1° On the coming into operation of this Constitution any person who was a citizen of Saorstát Éireann immediately before the coming into operation of this Constitution shall become and be a citizen of Ireland.
2° The future acquisition and loss of Irish nationality and citizenship shall be determined in accordance with law.
3° No person may be excluded from Irish nationality and citizenship by reason of the sex of such person.
2 1° Notwithstanding any other provision of this Constitution, a person born in the island of Ireland, which includes its islands and seas, who does not have, at the time of the birth of that person, at least one parent who is an Irish citizen or entitled to be an Irish citizen is not entitled to Irish citizenship or nationality, unless provided for by law.
2° This section shall not apply to persons born before the date of the enactment of this section,
… (Art. 9)