The Heqin is a term used in ancient China for a marriage . It usually referred to the Chinese emperor marrying off a Han Chinese princess, usually a pseudo-princess or concubine which he'd never met before, to an aggressive "barbarian" chieftain or ruler. The theory was that in exchange for the marriage, the chieftain would cease all aggressive actions toward China. The best-known example of heqin involved the beauty Wang Zhaojun. The first known of this marriage occurred in 200 BC, when a pseud… (More on Heqin)