One of the most prominent examples of this is Douglas MacArthur, who was given vast powers to implement reform and recovery efforts in Japan after World War II, and has been described occasionally as "the American proconsul of Japan".
Anneius appears to have had some pecuniary dealings with the inhabitants of Sardis, and Cicero gave him a letter of introduction to the propraetor Quintus Minucius Thermus, that the latter might assist him in the matter.