Within Senegal’s Sufi orders, the Sy family of Tivaouane is one of the most important (usually observers consider the Tijaniyya of Tivaouane, the Mouridiyya of Touba, and the Tijaniyya of Kaolack to be the most important Sufi communities in the country). The family recently had a change of leadership with the passing of Cheikh Ahmed Tidiane Sy Al Maktoum and the succession of Abdoul Aziz Sy Al Amine. The position is known as Khalifa, but means “successor” rather than “caliph,” or at least it means something different from the connotation that “caliph” has taken on in English.
A brief biography of the new khalifa, who was born in 1928, can be found here (French). He is the sixth khalifa of the Sy family, and is the son of Serigne Babacar Sy (1885-1957), the first khalifa, and is the grandson of Al-Hajj Malik Sy (1855-1922), the founder of the family and of this branch of the Tijaniyya. The new khalifa has been a longtime counselor to past leaders of the community.