Imerina efa-toko ("four districts of Imerina") refers to the historical territorial division corresponding to the territory of authentic Imerina or Imerina proper in Madagascar.
The four divisions are attributed to Andriamasinavalona. He assigned each of his four sons, born to different mothers, a principality. These remained semi-autonomous during his lifetime and became independent kingdoms after his death, leading to civil wars within Imerina.
+ Four principalities of Imerina propre and mother of each rulers Principality Capital Ruler Mother Eastern Imerina Ambohimanga Andriantsimitoviaminandrianjaka Ratompoindroandriana Southern Imerina (Imerina Atsimo) Antananarivo Andrianjakanavalomandimby Ramananimerina Western Imerina (Marovatana) Ambohidratrimo Andriantomponimerina Ramananandrianjaka Northern Imerina Ambohitrabiby Andrianavalonimerina Rasolomananambonitany
See also Imerina enin-toko Andrianampoinimerina
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