One of his key advisors , Wei Zheng , recommended Du Zhenglun 's talent and stated that there were few people as talented .
In 626 , Li Shimin became emperor ( as Emperor Taizong ) .
One of Li Shimin 's key advisors , Wei Zheng , recommended Du Zhenglun 's talent and stated that there were few people as talented .
In 626 , Li Shimin became emperor ( as Emperor Taizong ) .