Wei Zheng
After Wei Zheng's death in 643, the emperor commented that he was a mirror to show the mistakes of the court, and built an elaborate tomb for him near his own imperial tomb and betrothed one of his daughters, Princess Hengshan, to Wei Shuyu (), Wei Zheng's son. Subsequently, as a result of false accusations made by others in the court, the stone monument that Emperor Taizong had built for Wei Zheng was destroyed, and Emperor Taizong cancelled the planned marriage between Princess Hengshan and Wei Shuyu. However, after the failure of the campaign against Goguryeo in 646, Emperor Taizong, believing that Wei Zheng would have stopped him from going on the campaign had he lived longer, restored the stone monument. Wei Zheng's effect and influence has been examined by many historians long after his death. Wei Zheng is also revered as a minor god of doorways in parts of Taiwan.