Emperor Chongzhen, the last emperor of Ming Dynasty, on coming to power, distanced the mighty eunuch Wei Zhongxian and removed all his supporters. The country was in turmoil, but the heroes of jianghu had a legendary sword. Green Dragon Sword. The Qinglong Sword is a famous sword from the Tang Dynasty. One of the four famous weapons in ancient China, and is known as the "king of all weapons". This sword is made of iron and wood, It is 74 cm long and 3 cm wide. The scabbard is made of two pieces of hardwood, fixed by five groups of copper rings, with different patterns on the copper rings. There is a blue dragon on each side of the copper ring in the guard ring, so it is called the Green Dragon Sword.