When 'Onesi was born about 1836, in Fahefa, Tongatapu, Tonga, his father, Kolo'akuila, was 61 and his mother, Kesaia, was 49. He married Ilaisaane Niumoefanga Makahununiu about 1860. They were the parents of at least 1 son and 1 daughter. He died in Tongatapu, Tonga, and was buried in Fahefa, Tongatapu, Tonga.
Italian: patronymic or plural form of Onesto .