AN oba’s crown represents the highest level of authority vested in Yoruba traditional rulers, as the beaded embroidered crown is the foremost attribute of a Yoruba oba.An oba’s crown may also be referred to as an Adenla, or great crown. Adenla is an elaborate palm-like headdress, like the crown, but features a heavily-beaded veil that covers the face.In his article on this topic, Robert F. Thompson writes: “The crown incarnates the intuition of royal ancestral force, the revelation of great moral insight in the person of the king and the glitter of aesthetic.”
Source: Ooni’s Aare crown and its historical significance – Tribune Online