衮服

gǔnfú

(1) [robes worn by the emperor; ceremonial dress for royalty]∶天子穿的礼服。 即卷龙衣

(2) [high-ranking government officials]∶指三公

衮服相天下, 傥来非我通。 --白居易《闻庾七左降因咏所怀诗》