The black lord refers to Mansa Musa, a dedicated Muslim and Emperor of West Africa during the 14th century. Land of the negroes means dark-skinned civilization. It mentions that his the richest and noblest of all lands indicate his travels because it compares other emperors' wealth and hereditary class to Mansa Musa. No other empire could compare to his status because of the natural resources of gold in Mansa land. His leadership is shown due to him being called black lord. He had vast amounts of his people following him on his travel to Mecca, which shows his people's dedication and respect for him as king.