《资治通鉴·晋纪·晋纪二十二》
洛州刺史杜郁，是王堕的外甥，左仆射赵韶厌恶他，就向苻生进谗言，说他和东晋来往，有二心，把他杀死。
洛州刺史杜郁，随之甥也，左仆射赵韶恶之，谮于生，以为贰于晋而杀之。
Luo Zhou Inspector Du Yu was Wang Duo's nephew, and the Left Attendant Secretary Zhao Shao hated him, so he slandered him to Fu Sheng, saying that he was in contact with the Eastern Jin and was disloyal, and so had him killed.