Complex sentence: After his death in 643, the emperor commented that he was a mirror to show the mistakes of the court, he elaborate a tomb built for him near his own imperial tomb and betrothed one of his daughter to Wei Shuyu, son of Wei Zheng.
Split into simpler sentences: After his death in 643, the emperor commented that he was a mirror to show the mistakes of the court. He also had an elaborate tomb built for him near his own imperial tomb and betrothed one of his daughter to Wei Shuyu, son of Wei Zheng.