Heukchi Sangji (630–689) was a Baekje

Baekje

Baekje or Paekche was a kingdom located in southwest Korea. It was one of the Three Kingdoms of Korea, together with Goguryeo and Silla....

 general who became a leader of the Baekje Revival Movement, and later a Tang Dynasty

Tang Dynasty

The Tang Dynasty was an imperial dynasty of China preceded by the Sui Dynasty and followed by the Five Dynasties and Ten Kingdoms Period. It was founded by the Li family, who seized power during the decline and collapse of the Sui Empire...

 general.

Independence movement

After serious attack of Silla-Tang alliance, Heukchi ran away firstly with several unknown generals. Then, his force got a success on regaining Imjohn castle gathering 30 thousand people. Tang's Sojeongbang seemed to be eager to defeat him and Baekje people. But he won continuously reoccupying 200 or more castles.

He started to lose his base from the betrayal of Yongsak who had been his followers. Yongsak was known to yield Tang and even took up official rank. Heukchi Sangji kept marching onward defeating several Chinese-based enemies.

Later he joined Tang's force by dissolution of Baekje force. Heukchi Sangji sallied forth for Tang's war against Göktürks

Göktürks

The Göktürks or Kök Türks, were a nomadic confederation of peoples in medieval Inner Asia. Known in Chinese sources as 突厥 , the Göktürks under the leadership of Bumin Qaghan The Göktürks or Kök Türks, (Old Turkic: Türük or Kök Türük or Türük; Celestial Turks) were a nomadic confederation of...

. But Heukichi and his patron General Zhao felt out of favour from Wu Zeitan and the two was sentenced to prison when they were slandered against. Finally, he came to be in chains and sentenced to death in 689.