evidence: Tradition asserts that the Edo people became dissatisfied with the rule of a dynasty of semimythical kings, the ogisos, and in the 13th century they invited Prince Oranmiyan of Ife to rule them. His son Eweka is regarded as the first oba, or king, of Benin, though authority would remain for many years with a hereditary order of local chiefs. Late in the 13th century, royal power began to assert itself under the oba Ewedo and was firmly established under the most famous oba, Ewuare the Great (reigned c. 1440–80), who was described as a great warrior and magician. He established a hereditary succession to the throne and vastly expanded the territory of the Benin kingdom, which by the mid-16th century extended from the Niger River delta in the east to what is now Lagos in the west. Ewuare also rebuilt the capital (present-day Benin City), endowing it with great walls and moats. The oba became the supreme political, judicial, economic, and spiritual leader of his people, and he and his ancestors eventually became the object of state cults that utilized human sacrifice in their religious observances.