[1][6][9] The matriarch or founder of this maternal dynasty was Lingeer Fatim Beye, a princess and queen originally from the Kingdom of Sine.

The Ñaancos were for several centuries until 1865 (the Battle of Kansala) the reigning and powerful maternal dynasty of Kaabu (in present-day Guinea-Bissau).

In reporting this tradition, Henry 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.

[20] Having escaped Kaabu, the country of their birth, they were granted asylum by the Serer nobility[21] to which Lingeer Fatim Beye's family were a member of.

As well as this patrilineal mode of succession, a Brak had to belong to one of the main three royal matriclans before being eligible to succeed to the throne.

The mother of Brak Caaka Mbodj was a Loggar and his first wife (Lingeer Isa Tanor) a Tedyek.

[10] For the next six hundred years since its foundation to the dissolution of Waalo in 1855, royal princes from these three maternal dynasties engaged in dynastic civil wars in order to secure their succession to the throne.

In the 18th century, the prince Mö Mbôdy Kumba Khedy Mbooj (later – Brak Mö Mbôdy Kumba Khedy Mbooj, reigned c. 1734 – 1735, according to Amadou Wade[27]), who was then the head of the Joos Dynasty galvanised the support of his maternal clan and led a massacre of the other maternal dynasties of Waalo, particularly the Tedyeks, the biggest rivals to the Joos.

[34] The surprise attack launched in Waalo against Brak Njaak Kumba Xuri Yaay's capital (Nder) by the Almamy of Futa, was just one of many of his jihadic expeditions especially in Jolof and Cayor.

Although Brak Mö Mboj Maalik Mboj (a Loggar) was the last Brak of Waalo just before the collapsed of the monarchy in 1855[39] under Lingeer Ndateh Yalla Mbooj (a Tedyek) and her husband Morosso Tasse Jobe (prince of Cayor), the political scene of Waalo was dominated by the Joos and Tedyek Dynasty for nearly 600 years.

In this period where every maternal family tried to advance their own cause, alliances were formed and broken (see list of kings below, "Brak Yerim Kode Fara Mbune").

[6] They were able to raise an army as in the Battle of Nder; had the financial capacity and backing to ensure the accession of their clan members.

The enthroned Lingeer - Njombot Mbooj,[42] the full blood sister of Ndateh Yalla and daughter of Brak Amar Fatim Borso Mbooj (a Joos), is reported to have bribed a prominent member of the Council of Electors by the name of Jawdin Sharlu[43] (var.

Dyawdin Sharlu[37][38]) with a total sum of 1500 French Francs and gold just to secure the election of her preferred candidate.

[37][38] Njombot Mbooj (born 1800,[44] died September 1846[45]) and her younger sister (Ndateh Yalla) were two of the most powerful women in Senegalese history in the first half of the 19th century.

Mborika or Mbarika Mbodje[29]) was the mother of Brak Yerim Kode Ngone, the head of the 17 princes of Joos.