He was the grandson of King Andriamasinavalona,[1][2][3][4] son of Rasohanamanjaka of Ambohimahamanina, one of his daughters, with a certain Andriandambozozoro, Lord of Ivatobe avaratra and Malaza in Ambodirano Imerinatsimo.

The tomb of Andriamangarira, qualified as a « Pirogue grave », and his « Tranomasina » (Sacred House) according to traditions, are still visible in Antsahadinta.

Their descendants constitute the clan of Zanamangarira, « Zanak'Andriamasinavalona » of origin,[6][7][8][9] and their territories extend into Ankibonimerina[10] from Miadanimerina avaratra, Ambatomahabodo and Finaritra; to Vakinankaratra[11] in Isoavina, Antetezambato, Tsarafaritra, Ambatoharanana, Miadanimerina atsimo, Antamika and Ankotsaka.

His sister named Ravololondrenitrimo from Ambohimiakoja was the mother of: According to tradition and history, Andriandambozozoro, Lord of Ivatobe, Androhibe and Ambohitrontsy married one of the daughters of Andriamasinavalona, King of Imerina.

Later, he left Ampahatelo and moved southward to a place next to Miantsoarivo (nearby Behenjy) and founded another village called Itsarahavana.