On 25 June 1927, Markievicz was elected to the 6th Dáil representing Dublin South, one of her final political achievements before her death weeks later.
On 25 June 1927, Constance Markievicz was elected to the 6th Dáil Éireann as a representative for the Dublin South constituency, standing for Fianna Fáil, the new republican party co-founded by Éamon de Valera in 1926, which she had joined after leaving Sinn Féin.
This election marked the continuation of Markievicz's decades-long political career and demonstrated her enduring popularity and relevance in Irish politics even in the final months of her life. Fianna Fáil's strong showing in this election signalled its emergence as a major force in Irish politics, eventually leading the party to enter the Dáil and later to form governments for decades to come.
Tragically, Markievicz would not have the opportunity to take her seat or serve out her term; she fell seriously ill shortly afterward and died just three weeks later, on 15 July 1927. Her election to the 6th Dáil thus stands as her final electoral triumph and a testament to her unbroken commitment to Irish republicanism and public service until the very end of her life, capping a political career defined by persistent barrier-breaking and revolutionary conviction.