The successor to Ewedo would have been prince Obuobu who was engaged in endless wars in Ibo land. In his absence, his brother was crowned with the title Oba Oguola.
Oba Oguola dug the first and second moats to fortify the city from invaders from Udo. He further decreed that important towns and villages should build similar moats as defense systems around their communities. This has given rise to twenty of such moats around Benin City and its environs.He encouraged the systematic organisation of the ancient guild of brass casting which was declining.
The war menace from Akpanigiakon of Udo was ended when the Oba defeated his foe at the battle of Urhezen about the year 1285.