What is the relationship between local kings and chiefs in Nigeria? What is the distribution of power? Is it hereditary?

Nigeria was once colonized by Britain, and its southern region has been quite open, which is completely different from the situation in novels and movies. Fraud, robbery, deception, kidnapping and other incidents often occur, so the chief is still in public opinion, but in fact he has no power.

In northern Nigeria, Muslims are underdeveloped, and the power of local kings exceeds that of chiefs. The local king is called Amir, and the palace is in Kano. In several northern States, his sons used to be in charge of each other and were called "Sukaba". King Tutu has no real power now, but his influence is greater than that of the governor. It is necessary to flip pictures of the king, the president and the governor in the company, otherwise the north will be in trouble.

The local king is hereditary, but the chief is no longer.