He was the founder of the Royal House of Semou Njekeh Joof, founded in the early eighteenth century.

Since its foundation, at least seven kings of Sine from his royal house had succeeded to the throne including his son Maad a Sinig Boukar Tjilas Sanghaie Joof.

[1] Semou Njekeh Joof is reported to have had at least thirty-five children including sixteen sons.

[1] His youngest son with Yandeh Mbouna Faye (Princess of Sine, later Queen Mother) - was Maad a Sinig Boukar Tjilas Sanghaie Joof, the first from his royal house to succeed the throne of Sine.

[1] In the Serer religion, Semou Njekeh Joof is immortalized in the cult of Tagdiam.