Yuan Shao was a warlord during the late Han Dynasty

Han Dynasty

The Han Dynasty was the second imperial dynasty of China, preceded by the Qin Dynasty and succeeded by the Three Kingdoms . It was founded by the rebel leader Liu Bang, known posthumously as Emperor Gaozu of Han. It was briefly interrupted by the Xin Dynasty of the former regent Wang Mang...

 period of Chinese history

History of China

Chinese civilization originated in various regional centers along both the Yellow River and the Yangtze River valleys in the Neolithic era, but the Yellow River is said to be the Cradle of Chinese Civilization. With thousands of years of continuous history, China is one of the world's oldest...

. He occupied the northern territories of China during the civil war that occurred towards the end of the Han Dynasty and the beginning of the Three Kingdoms

Three Kingdoms

The Three Kingdoms period was a period in Chinese history, part of an era of disunity called the "Six Dynasties" following immediately the loss of de facto power of the Han Dynasty rulers. In a strict academic sense it refers to the period between the foundation of the state of Wei in 220 and the...

 era. He was also the older half-brother of Yuan Shu

Yuan Shu

Yuan Shu was a warlord during the late Han Dynasty era of Chinese history. He rose to prominence following the collapse of the imperial court in 189. He was said to be a younger cousin of the warlord Yuan Shao, but was actually Yuan Shao's younger half-brother...

, a warlord who controlled the Huai River

Huai River

The Huai River is a major river in China. The Huai River is located about mid-way between the Yellow River and Yangtze River, the two largest rivers in China, and like them runs from west to east...

 region, though the two were not on good terms with each other.

One of the most powerful warlords of his time, Yuan Shao spearheaded a coalition of warlords

Campaign against Dong Zhuo

The Campaign against Dong Zhuo was a punitive expedition initiated by a coalition of regional officials and warlords against Dong Zhuo, Chancellor of State, in 190 during the late Han Dynasty of Chinese history...

 against Dong Zhuo

Dong Zhuo

Dong Zhuo was a politician and warlord during the late Han Dynasty period of Chinese history. He seized control of the capital city Luoyang in 189 when it was in a state of turmoil following the death of Emperor Ling and a clash between the eunuch faction and some court officials led by...

, who held Emperor Xian

Emperor Xian of Han

Emperor Xian of Han , personal name Liu Xie, style name Bohe, was the last emperor of the Han Dynasty period of Chinese history...

 hostage in the capital Luoyang

Luoyang

Luoyang is a prefecture-level city in western Henan province of Central China. It borders the provincial capital of Zhengzhou to the east, Pingdingshan to the southeast, Nanyang to the south, Sanmenxia to the west, Jiyuan to the north, and Jiaozuo to the northeast.Situated on the central plain of...

, but failed due to internal disunity.