Le Yanzhen

Le Yanzhen (樂彥禎) (d. 888), né Le Xingda (樂行達), was a warlord late in the Chinese dynasty Tang Dynasty, who ruled Weibo Circuit (魏博, headquartered in modern Handan, Hebei) as its military governor (Jiedushi) from 883 to 888.

It is not known when Le Xingda was born, but it is known that he was from Weibo Circuit's capital Wei Prefecture (魏州). His father Le Shaoji (樂少寂) was also a Weibo officer, and had successively served as prefect of three of Weibo's prefectures — Chan (澶州, in modern Anyang, Henan), Bo (博州, in modern Liaocheng, Shandong), and Bei (貝州, in modern Xingtai, Hebei). Le Xingda became a Weibo officer in his youth. After Han Jian became military governor, Le Xingda was promoted, and later became the prefect of Bo Prefecture. After Han briefly captured Heyang Circuit (河陽, headquartered in modern Jiaozuo, Henan) in 882 and forced Heyang's military governor Zhuge Shuang to flee, as Le contributed to the victory, Han made him the prefect of Chan Prefecture.

In 883, while Han was attacking Tianping Circuit (天平, headquartered in modern Tai'an, Shandong), Zhuge took the opportunity to retake Heyang by surprise. Han, hearing of this, made peace with Tianping's acting military governor Zhu Xuan and attacked Heyang again, but was defeated by Zhuge's general Li Hanzhi. After Han's defeat, Le surprised Han by heading for Wei Prefecture in advance of Han and occupying it. The Weibo soldiers supported him to replace Han, who was subsequently killed by his own soldiers. Then-reigning Emperor Xizong thereafter confirmed Le as the acting military governor, and later in the year full military governor.

...
Wikipedia