Wei Zheng was a prominent Chinese historian and politician during the Tang Dynasty, known for his role as a chancellor. He was born in 580 AD and became famous for his candid advice to the emperor, particularly to Emperor Taizong. His straightforwardness earned him respect and recognition in the court. Wei Zheng is best known for his work on the historical text, Book of Tang, which provides valuable insights into the political and social life of the Tang period. His contributions to history and governance have made him a significant figure in Chinese history, celebrated for his integrity and dedication to public service.