Jolof Empire
The Brak, Amar Fatim Borso belonged to the powerful, yet controversial Joos Maternal Dynasty of Waalo, which was one of the reigning Houses of Waalo at the time. The Wolof Kingdom of Waalo was ruled by the Wolof Mbodj (or Mbooj) paternal dynasty — direct paternal descendants of Barka Bo, the first Brak of Waalo and maternal half-brother of Ndiadiane Ndiaye - founder of the Jolof Empire. Barka Bo and Ndiadiane's mother was Fatoumata Sall, daughter of the Lamtoro of Futa Abraham Sall - who was a Toucolueur. There is a problem of Chronology regarding his “mother”. How was Ndiadiane Ndiaye the son of the daughter of a Lam toro called Fatoumata Sall when the “Lam toro” did not exist in 1200's or 1300's? The lam toro is a contemporary feature or function to Koli Tengala (16th century). Ndiadiane Ndiaye whom historians place between the 13th and 14th centuries cannot be born centuries before his mother. So this information from some versions of the oral tradition, may not be accurate.It could have been an attempt by the Wolofs to incorporate other Senegambian ethnicities into the myth of the consolidator of the Wolof Jolof empire Ndiadiane Ndiaye to make them more comfortable with being vassals of the Jolof empire. Barka Mbodj was the son of Mbarick Mbodj. Mbarick Mbodj was an ancestor of Ndaté Yalla Mbodj.On the maternal side, all the kings or queens of Waalo had to belong to one of the three maternal dynasties or royal houses that had ruled over Waalo for nearly 600. The Wolof who were conscious that they ruled multi-ethnic territoires chose lineages that were multi ethnic, so it was Wolof men from the royal family of Waalo marrying Wolof women who had multi ethnic ancestry from the following maternal lineages:Tedyek (of Fula or Mende origin), Loggar (of Moorish origin) and Joos (of Serer origin). Ndaté Yalla's father belonged to the Joos Maternal Dynasty, and a direct maternal descendant of Lingeer Ndoye Demba - a Wolof Lebou or a Serer Princess of Sine, matriarch and founder of the Joos Dynasty of Waalo and Queen of that kingdom, herself the maternal grand daughter of Lingeer Fatim Beye - a Serer Queen of Sine. Thus, Ndaté Yalla is related to the Joof and Faye royal families that had ruled Sine and Saloum, just as she is related to almost all the Senegambian royal families, as these families used to give their sons and daughters in marriage to each other. In fact Saloum, a Serer kingdom had several Wolof kings due to these intermarriages because the Serers only determine ancestry and royal inheritance by the maternal lineage in contrast to the Wolofs who determine ancestry and royal inheritance by both the meen (maternal lineage) and the Geño (paternal lineage).