Osinyago was one of the short lived Alaafin of Oyo, whose repressive rule led to an inglorious end. Osinyago dedicated himself to the pursuit of wealth but not even his children lived to enjoy them. His equally covetous son lost his life to this conduct and his second child who was a lady killed her cousin while arguing on the privileges that was due to each of them, the cousin haven been adopted as heir to the throne.