Oral traditions recorded by Jesuit missionaries in the late eighteenth century suggest that Andriambélomàsina, ruler of the Imerina (the territory of the Merina ethnic group) from 1730 to 1770 , directed that his eldest son Andrianjàfy succeed him, followed by his grandson Ramboàsalàma, son of his eldest daughter. Andrianjàfy, however, intended for his own son to take his place and plotted to kill Ramboàsalàma, who, fearing for his life, fled to the north. Supported by a dozen Merina chiefs, Ramboàsalàma returned in 1787, overtaking the city of Ambohimànga and exiling his uncle, who was later killed.
Ramboàsalàma was crowned Andrianampoinimerina, “the prince in the heart of Imerina.” After consolidating power through treaties and marriage alliances and establishing a capital at Antananarivo in about 1795 Andrianampoinimerina also known as Nampoina began to expand the Merina Empire Eventually he controlled much of the island conquering and consolidating the Betsileo Sihanaka ...