sons Geng Jingzhong and Geng Zhaozhong become court attendants under Shunzhi and marry Aisin Gioro women, with Haoge's (a son of Hong Taiji) daughter marrying Geng Jingzhong and Prince Abatai's (Hong Taiji) granddaughter marrying Geng Zhaozhong. The Qing differentiated between Han Bannermen and ordinary Han civilians. Han Bannermen were made out of Han Chinese who defected to the Qing up to 1644 and joined the Eight Banners, giving them social and legal privileges in addition to being acculturated to Manchu culture. So many Han defected to the Qing and swelled the ranks of the Eight Banners that ethnic Manchus became a minority within the Banners, making up only 16% in 1648, with Han Bannermen dominating at 75%. It was this multi-ethnic force in which Manchus were only a minority, which conquered China for the Qing. It was Han Chinese Bannermen who were responsible for the successful Qing conquest of China, they made up the majority of governors in the early Qing and were the ones who governed and administered China after the conquest, stabilizing Qing rule. Han Bannermen dominated the post of governor-general in the time of the Shunzhi and Kangxi Emperors, and also the post of governors, largely excluding ordinary Han civilians from the posts. To promote ethnic harmony, a 1648 decree from the Manchu Shunzhi Emperor allowed Han Chinese civilian men to marry Manchu women from the Banners with the permission of the Board of Revenue if they were registered daughters of officials or commoners or the permission of their banner company captain if they were unregistered commoners, it was only later in the dynasty that these policies allowing intermarriage were done away with. The Qing implemented a policy of segregation between the Bannermen of the Eight Banners (Manchu Bannermen, Mongol Bannermen, Han Bannermen) and Han Chinese civilians. This ethnic segregation had cultural and economic reasons: intermarriage was forbidden to keep up the Manchu heritage and minimize sinicization. Han Chinese civilians and Mongol civilians were banned from settling in Manchuria. Han civilians and Mongol civilians were banned from crossing into each other's lands. Ordinary Mongol civilians in Inner Mongolia were banned from even crossing into other Mongol Banners. (A banner in Inner Mongolia was an administrative division and not related to the Mongol Bannermen in the Eight Banners) These restrictions did not apply Han Bannermen, who were settled in Manchuria by the Qing. Han bannermen were differentiated from