The total net worth of each individual on the list is estimated, in United States dollars, based on their assets and accounting for debt.
[1] As of March 2014, King Mohammed VI of Morocco topped the list with US$2 billion, while Nigerian oil magnate King Fredrick Obateru Akinruntan,[2] the Olugbo of the Ugbo Kingdom, came second on the list with $300 million.
Rounding out the top five was the Ghanaian King Osei Tutu II, Asantehene of the Ashanti, with $10 million.
[3][4] In the time since the period of evaluation, King Okunade Sijuwade, Olubuse II has died.
He was succeeded as the Ooni by King Ojaja II, a distant relative, although the personal wealth that was evaluated went to his lineal heirs in the Sijuwade family.