 Lighter types, such as the Thraex, were equipped with a smaller, lighter shield called a "parma", from which they and their supporters were named "parmularii" ("small shields").Titus and Trajan preferred the "parmularii" and Domitian the "secutarii"; Marcus Aurelius took neither side.Nero seems to have enjoyed the brawls between rowdy, enthusiastic and sometimes violent factions, but called in the troops if they went too far.