Yangsanjab

Yangsanjab was born to the hereditary house of Prince Öndür, which was placed second (doroi giyūn wang) in Manchu-Mongol royal ranks.

Hasar's descendant Jayisang contributed to the rise of Manchu-led Qing dynasty (1644–1912) and intermarried with the Aisin Gioro imperial family.

In its final years, the Qing dynasty promoted Han colonization of Mongolia to increase tax revenues and build a borderland defense.

He succeeded his father Nayangerel as Prince Öndür as late as in 1920, but had gained popularity among the Mongols in the banner even before the succession.

Realizing that cultivation would push the Mongols in the banner onto the margin of survival, Yangsanjab and other princes and tayiji pressed the government of Liao-ning to stop the projects in 1930.

Yangsanjab's army was originally organized by his father, Nayangerel, to defend the banner from bandits when the Qing dynasty began to fall after the Xinhai Revolution.

The province made Prince Darkhan take disciplinary action against Yangsanjab, possibly because direct punishment by the Chinese authority would further inflame Mongols' anti-Chinese sentiment.

The end of cultivation of Hsi-chia-huang and Liao-pei-huang saved Khorchin Left Wing Middle Banner from abolition.