What African American was called the black joan of arc?

This might not be the answer you want but a Black Female Knight called NUBIA was featured in a couple of issues of Wonder Woman. she may have been structurally weaker than Wonder Woman her armor compensating for this. Nubia is a country in North Africa- actually a region, there is a Nubian Lion. In the story Nubia herself claims her name is derived from (Land of Clouds) implying her homeland is always shrouded in mists. ( tropical rain forest- a.k.a. jungle) as far as is known Nubia is purely a fictional character though surely a ( Lady Knight) type. Once a Knight may nor be enough, Ste Jeanne not alone! I am not aware of any real character of Black origin remotely paralelling the classic Jeanne D"arc role it would have been publicized big.