Born in Fengyang Dingyuan, Lan Yu was Chang Yuchun's brother-in-law, and Zhu Yuanzhang was a fellow villager, and in his early years he served under the account of his brother-in-law Chang Yuchun. Under the influence of Chang Yuchun, Blue Jade fought bravely and had general talents, so Chang YuChun recommended Blue Jade to Li Zhu Yuanzhang. From then on, he began his career path of promotion, and was promoted from Guan Junzhen to Qianhu and command envoy.
However, when Lan Yu's career was going well, his brother-in-law often died of spring illness, and as the saying goes, there are people in the DPRK who are good officials. The death of Chang Yuchun will inevitably affect The future career of Blue Jade.
However, Blue Jade did not lose heart, but worked harder, using his own courage to fight and kill the enemy to open his career path. At that time, the Central Plains had been settled, but the Yuan dynasty regime in the north would still threaten the northern borders of Daming. At that time, Sichuan was not returned to the king, and the warlords in Yunnan still served the Yuan Dynasty, which showed that there were too many hidden dangers in the Daming at that time.
In the third year of Hongwu, in order to eliminate hidden dangers, Zhu Yuanzhang sealed the blue jade capital of the governor's mansion and followed Fu Youde, the Marquis of Yingchuan, to conquer Sichuan. A few major battles wiped out the local warlords.
In the fifth year of Hongwu, Lan Yu followed Xu Da in his campaign against the Northern Yuan, and Lan Yu defeated Wang Baobao twice as a forward.
In the autumn of the eleventh year of Hongwu, Lanyu and Mu Ying led an army to the west, and this battle was very fruitful, and Lanyu was given the title of Marquis of Yongchang for his merits.
In the fourteenth year of Hongwu, Lan Yu followed Fu Youde in his conquest of Yunnan, and with the strong Ming army and the wise command of Lan Yu, the Liang King of Yunnan died on the way to escape.
In the twenty-first year of Hongwu, Lan Yu led 150,000 troops to the north to break the Yuan, he adopted a rapid surprise attack of the combat method, beat the Ancient Si Timur to flee north, this battle Blue Jade captured a lot of booty, and from then on there was no longer any hidden danger around Daming.
Zhu Yuanzhang was very happy, praised blue jade as Wei Qing of the Han Dynasty, and awarded blue jade as the Duke of Liang, and since then blue jade's position of power has reached its peak.