Zhu Youzhen
Zhao Yan () (died 923), né Zhao Lin (), was an official of the Chinese Five Dynasties and Ten Kingdoms period state Later Liang. As a son-in-law of its founding emperor Zhu Wen and as someone instrumental in the succession of its last emperor Zhu Zhen (Zhu Youzhen), he was influential during Zhu Zhen's reign and was traditionally blamed for corruption and misleading the emperor into making critical mistakes that caused Later Liang's fall at the hands of its rival Later Tang.