He served as regent and de facto monarch during the interregnum period when the royal succession of Mangareva was in doubt.
[2] Christianity was introduced to the Gambier Islands in the 1830s by French Picpus priests, Honoré Laval and François Caret with the support of King Maputeoa and his father Matua.
In a report dated to 4 April 1869, French Lieutenant Xavier Caillet noted that Queen Maria Eutokia Toaputeito had resigned and retired to Rouru Convent, on Mount Duff, and Akakio had been chosen as her successor to the regency.
[10][11][12] Akakio died on 24 August 1869, after receiving all the sacraments of the Catholic Church administered the French missionaries in Mangareva.
She considered choosing Father Laval, the head of the Catholic mission, as the new regent and turu (guardian) of her two daughters but the French priest refused the offer.