A federation of fortified mocambos of escaped enslaved Africans and their descendants in the Serra da Barriga highlands behind Portuguese Pernambuco, self-organized as a confederated monarchy — 'Angola Janga' ('Little Angola') — under a paramount chief who allocated land and appointed officials; ruled successively by Ganga Zumba (to 1678) and Zumbi (1678-1694), with a population historians estimate in the thousands to low tens of thousands at its height.
Its main settlement, Cerca do Macaco, fell to a Portuguese/bandeirante assault in January-February 1694; Zumbi, the last leader, evaded capture until he was killed on 20 November 1695, after which the centralized polity collapsed, though scattered mocambos persisted in the region for some years afterward.
English-language polity-specific history of Palmares, its kings (Ganga Zumba, Zumbi), and its 1694 fall — verified on Open Library, not a broad survey.
Foundational Brazilian scholarly monograph specifically on Palmares (Portuguese-language), verified on Open Library.