 The Susu are a patrilineal society, predominantly Muslim, who favor endogamous cross-cousin marriages with polygynous households common.They have a caste system like all Manding-speaking peoples of West Africa, where the artisans such as smiths, carpenters, musicians, jewelers and leatherworkers are separate castes, and believed to have descended from the medieval era slavery.The Susu people, like other Manding-speaking peoples, have a caste system regionally referred to by terms such as "Nyamakala", "Naxamala" and "Galabbolalauba".