Few ancient tombs in the history of China, especially those belonging to emperors, can be completely preserved. I feel that the ultimate goal of most grave robbers is to flush the money in the tomb, but there are also a few other reasons.
Like Wu Zixu, he went to rob a tomb to avenge his father and brother. He was born into a bureaucratic family. Because the prince was framed, Wu She, the teacher of the prince, was also implicated. Wu Zixu's brother Wu Shang and his father Wu She were both brutally killed by King Chu Ping. In order to avenge his father and brother, Wu Zixu went to the State of Wu. His talent was appreciated by He Lv, the king of Wu, and later he became an important official in the imperial court. After a while, Wu Zixu and Sun Wu entered the capital of Chu. The first thing is to dig out the tomb of King Chu Ping, not for the money inside, but to avenge his father and brother. At that time, King Chu Ping had been dead for more than ten years. Wu Zixu dug up the tomb of King Chu Ping and personally whipped his body several hundred times to avenge them.
Cao Cao is called the ancestor of grave robbery. Cao Cao, the hero of the Three Kingdoms, is also good at robbing tombs. At that time, in order to solve the logistics problem, Cao Cao set up a professional grave robbery organization to support his own people with stolen money and survived the most difficult stage. As for how much gold and silver Cao Cao stole from the tomb, no one can tell.
Huang Chao is known as a wonderful flower that can't even find its entrance. Born in a salt merchant family, he practiced martial arts since childhood. Huang Chao joined the rebel army led by Wang Xianzhi and became the supreme leader after Wang Xianzhi's death. After all, it costs a lot of money to fight. Huang Chao took a fancy to Wu Zetian's mausoleum, but it was almost hollowed out, and even the entrance could not be found. Finally, I had to give up, and Gan Ling got away with it.