 Curule Aediles were added at a later date in the 4th century BC, and their duties do not differ substantially from plebeian aediles.However, unlike plebeian aediles, curule aediles were allowed certain symbols of rank—the "sella curulis" or 'curule chair,' for example—and only patricians could stand for election to curule aedile.This later changed, and both Plebeians and Patricians could stand for Curule Aedileship.