[11][12] Lingeer Fatim Beye was a member of the Serer ethnic group and the matriarch of the Joos Maternal Dynasty of Waalo.

[14] The marriage of Lingeer Fatim Beye to one of the most historical personalities of 14th century Senegambian royalty agrees pretty much with the general consensus regarding Serer-Guelowar relations.

In reporting this tradition, Gravrand did not notice that this is actually a description of the 1867 (or 1865) Battle of Kansala although the departure of the Guelowar can probably be explained by a war or a conflict of succession.

[17] It was the Serer nobility to which Lingeer Fatim Beye's family were a member of, who granted them asylum after their escape from Kaabu, the country of their birth.

[8] Ndoye Demba's marriage to one of the earliest Braks established the Joos Maternal Dynasty which lasted for nearly 600 years.

[21] The Braks themselves predated by the Lamanes,[22][6] ruled over Waalo from the 14th century until the disestablishment of the monarchy in 1855 due to French colonialism.