[1][2] According to the legend of Saloum (where his father was from), Mbegane Ndour was the nephew of Maad a Sinig Maissa Wali, although this is likely a later invention to legitimate him, as the timelines do not match up.
As lingeer (who were also powerful in their own right in Serer and Wolof country), the Princess insisted and decided to go ahead with the marriage without the blessing of her brother, which resulted in a constitutional crisis in Sine.
During the naming ceremony of Mbegane, his father, accompanied by his relatives, travelled from Mboudaye (what was then part of Mbey, later renamed Saloum) to Sine, and brought gifts with him.
Serer custom dictates that, a maternal uncle pays for almost everything during the naming ceremony of their sister's children - usually by sacrificing a bull, etc.
However, Maari Nduur, using his magical powers rooted in his Serer spiritual beliefs, was able to telepathically attract an animal called 'njamla' in Serer (or elephant in other versions[8]) for the sacrifice, and drew a circle where he ordered the guests to stay within thereby preventing them from getting wet from the heavy rainfall.
[10] In all versions, despite the King's initial refusal to the marriage, would later accept the marriage before the impregnation and birth of Mbegane - suggesting that Mbegane was not born out of wedlock - which would have been outside the norm of Senegambian society at the time, especially in ultra-conservative Sine (where he would later rule as Maad a Sinig succeeding Diessanou Faye[11]).
[19] He allied himself with the Buurba Jolof Biram Njeme Kumba, and the support of the Ndiaye dynasty would be important in the founding of Saloum.
[20] A potential rival for power, Mbegane was not particularly welcome at the royal court of Sine, and so was sent to his paternal homeland to carve out a kingdom for himself.
[21] The marabout's attempts to convert the local Serer to Islam had created friction, and so they joined Mbegane's forces, also strengthened by the purchase of horses and guns from European merchants on the coast.