Djolof
The next vassal kingdom of Mali to break away was the province of Jolof. The Wolof inhabitants of this kingdom united under their own emperor and formed the Jolof Empire around 1360 during a succession crisis that followed the death of Mansa Suleyman. It is unknown exactly why the Wolof broke away, but the destructive reign of Suleyman's predecessor and nephew Maghan I may have played a role in Jolof's motives if not the very reason why future mansas could not do anything about it.