In Greco-Roman times saffron was widely traded across the Mediterranean by the Phoenicians. Their customers ranged from the perfumers of Rosetta, in Egypt, to physicians in Gaza to townsfolk in Rhodes, who wore pouches of saffron in order to mask the presence of malodorous fellow citizens during outings to the theatre. For the Greeks, saffron was widely associated with professional courtesans and retainers known as the "hetaerae". Large dye works operating in Sidon and Tyre used saffron baths as a substitute; there, royal robes were "triple"-dipped in deep purple dyes; for the robes of royal pretenders and commoners, the last two dips were replaced with a saffron dip, which gave a less intense purple hue.