A further limitation to his original powers, and one of the greatest consequence, was subsequently introduced. The dictator was made subject to the _provocatio_ within the city,[869] probably by the _lex Valeria_ of 300 B.C.[870]—a change which, while not hampering the power of this magistracy in the field, prevented its being used for ruthlessly crushing a so-called sedition in Rome. Although we here see the commencement of the infringement of its civil power, the military authority of the office persisted for a century longer. It was not until the Hannibalic war that the two weakening elements of popular election and colleagueship were introduced into this magistracy. In the year 217 B.C., when, after the disaster at the Trasimene lake, it was difficult to communicate with the sole surviving consul, Q. Fabius Maximus was elected dictator,[871] presumably at the _comitia centuriata_ under the guidance of a praetor. In the same year the distrust and misplaced confidence of the people raised M. Minucius, the master of the horse, to an equality of command with Fabius.[872] Both acts were signs that the office was felt to be an anachronism, and the next year (216) marks the last instance of the military dictatorship.[873] The last dictator (_comitiorum habendorum causa_) was appointed in 202;[874] for the application of the name to Sulla and Caesar was the transference of the title of a constitutional office, in the first instance to a constituent authority, in the second to a monarchy, and in neither case was even the ancient mode of nomination preserved.[875] _The Magister Equitum_