[1] Although there were other monarchs of the Gambier Islands like Taravai, the kings of Mangareva were considered of the highest ranking.
The islands kings and chiefs were called ʻakariki from the togoʻiti class.
[2] Like many Polynesian genealogies, that of Mangareva commences with the gods, or, perhaps, deified ancestors.
[3][4] Because of King Joseph Gregorio II's minority, he ruled alongside his mother Queen Maria Eutokia Toaputeitou and uncle Elia Teoa.
In 1868, Joseph Gregorio II died without issue and a regency was installed pending the birth a male heir to Agnès or Philomèle, the two surviving daughters of Maputeoa.