Western Malagasy kingdoms (Menabe and Boina) that dominated the island before Merina expansion.
The Sakalava kingdoms of Menabe and Boina were brought under French colonial rule as part of the general conquest of Madagascar in 1896; the Merina had failed to fully conquer these western kingdoms, but French General Gallieni subjugated the entire island following the annexation of 1896.
Shillington's survey covers Madagascar's state formation and the rise of the Merina and Sakalava kingdoms.
The Sakalava within the island's broader history (broad context).