Society of the Mongol Empire bill punishable by death. To avoid devaluation, the penalty for forging or counterfeiting was also death. Members of the Golden Kin (or Golden Family - "Altan urag") were entitled to a share (khubi - хувь) of the benefits of each part of the Mongol Empire just as each Mongol noble and their family, as well as each warrior, was entitled to an appropriate measure of all the goods seized in war. In 1206, Genghis Khan gave large lands with people as share to his family and loyal companions, of whom most were people of common origin. Shares of booty were
Mongol invasions of Vietnam repeatedly ignored demands to attend the Yuan court and offer his personal submission to the Great Khan. By 1266, a standoff developed, as the Emperor Thánh Tông sought a loose tributary relationship, while Kublai demanded full submission. Trần Thánh Tông sent an official letter requiring Kublai to take his darughachi back. Because of civil war in the Mongol Empire, and the Yuan conquest of Song China, armed conflict was delayed. Instead, Kublai reminded him of the peace treaty signed by the Mongols and Đại Việt. As a result of the Mongol conquest of the Song Empire, by 1278–79, Mongol troops