Mana Maghan Niakhate appears in the foundation tradition of Diara as a Soninke merchant who regularly passed through the region of Kingui. His commercial mobility gave him familiarity with a politically unsettled area where raiding bands from the south had created disorder after the fall of Wagadu.

When Malinke bands raided Kingui, Mana Maghan organized an army composed of his own followers and local people, including Soninke and Diawambe. The coalition defeated the raiders, and the population asked him to remain in the region rather than return to his earlier activities.

Mana Maghan settled at Diara and became its king. His story presents political authority as emerging from military protection, local support, and the ability of a mobile merchant to assemble a coalition. It also serves as the dynastic origin narrative of the Niakhate rulers of Diara.