His Majesty, Oba Lamidi Olayiwola Atanda Adeyemi III (born 15 October 1938) is the Alaafin, or traditional ruler, of the Yoruba state of Oyo and Permanent Chairman, Oyo State Council of Obas and Chiefs is one of the foremost traditional rulers in Nigeria. He was once Chancellor of Uthman Dan Fodio University, Sokoto, thus being the first Yoruba monarch to occupy such position.
Alaafin or Man of the Palace in the Yoruba language was the title of the emperor of the medieval Oyo empire of northwestern Yorubaland. It was retained through the fall of that state as the official title of the ceremonial ruler of the contemporary Oyo clan
Oyo Empire covers all the Yorubaland (Southwest) including Cotonou, Lome and Togo. He was last born of Oduduwa and well known in all Anglo American Country that embrace Arts and Culture. Dr. High Prince Leye Babaloa is under his leadership as paramount ruler in Oke-Ogun and Oyo Empire of Federal Republic of Nigeria and Africa.
The official site of Alaafin of Oyo: https://web.archive.org/web/20110908012910/http://www.alaafin-oyo.org/main/
Oyo Empire (from Wikipedia)
The Oyo Empire was a Yoruba empire of what is today western and northern Nigeria. Established in the 14th century, the Oyo Empire grew to become one of the largest West African states encountered by pre-colonial explorers. It rose through the outstanding organizational skills of the Yoruba, wealth gained from trade and its powerful cavalry. The Oyo Empire was the most politically important state in the region from the mid-17th to the late 18th century, holding sway not only over most of the other kingdoms in Yorubaland, but also over nearby African states, notably the Fon Kingdom of Dahomey in the contemporary republic of Benin to the west.