The Kingdom of Nri was a medieval polity located in what is now Nigeria. The kingdom existed as a sphere of religious and political influence over a significant part of what is known today as Igboland prior to expansion, and was administered by a priest-king called an Eze Nri. The Eze Nri managed trade and diplomacy on behalf of the Nri people, a subgroup of the Igbo-speaking people, and possessed divine authority in religious matters.

Nigeria, officially the Federal Republic of Nigeria, is a country in West Africa. It is situated between the Sahel to the north and the Gulf of Guinea to the south in the Atlantic Ocean. It covers an area of 923,769 square kilometres (356,669 sq mi), and with a population of over 230 million, it is the most populous country in Africa, and the world's sixth-most populous country. Nigeria borders Niger in the north, Chad in the northeast, Cameroon in the east, and Benin in the west. Nigeria is a federal republic comprising 36 states and the Federal Capital Territory, where the capital, Abuja, is located. The largest city in Nigeria is Lagos, one of the largest metropolitan areas in the world and the largest in Africa.