 From the Han Dynasty, the title "Huangdi" could also be abbreviated to "huang" or "di".The former nobility titles "Qing" (卿), "Daifu" (大夫) and "Shi" (仕) became synonyms for court officials.The power of the emperor varied between emperors and dynasties, with some emperors being absolute rulers and others being figureheads with actual power lying in the hands of court factions, eunuchs, the bureaucracy or noble families.