These provinces were under the authority of proconsular or propraetorian senators invariably styled 'proconsul', with little need for intervention by the Emperor (although the Emperor had the power to appoint these governors if he wished). Most senatorial provinces, since they were not under the direct authority of the Emperor, did not grant the governor legions to command. There was one exception to this rule, the province of Africa, where there was always at least a single legion to protect the province from Berber tribes.