Another Review.

https://www.historyvshollywood.com/reelfaces/woman-king/

Worth reading in my opinion. I quoted the last paragraph.

Is The Woman King historically accurate?

Depicting the Dahomey as heroes or the "good guys" is quite a stretch, especially given their lucrative role in the slave trade and King Ghezo's reluctance to put an end to it. The Dahomey were brutal conquerors who enslaved their enemies and sold most of them for profit. They thrived on slavery, and it was the source of most of the kingdom's wealth. In fact, many slaves that they sold or traded were sent to America in the transatlantic slave trade. While the film acknowledges this troubling part of Dahomey's history, it creates the fictional Nanisca (Viola Davis) to stand against it, a character that didn't exist in real life.