《宋书·列传·卷五十七》
其中说皇上在式乾殿中，召见侍中彭城王曹植、荀组、藩岳、嵇绍、杜斌，然后才说足下所写的四位亲王，位次在三公之上，结果实际反而在黄门郎之下，有什么意义呢？
其云上出式乾，召侍中彭城王植、荀组、潘岳、嵇绍、杜斌，然后道足下所疏四王，在三司之上，反在黄门郎下，有何义？
It says that in Shigan Hall, the emperor summoned Pengcheng Wang Cao Zhi, Xun Zu, Fan Yue, Ji Shao, and Du Bin, the attendants-in-waiting. Only then does it mention the four royal princes you cited, saying that they ranked above the Three Dukes, but in reality their ranks were actually below the Gentlemen of the Yellow Gate. What’s the point of that?