Lady Yehenara, otherwise known as Empress Dowager Cixi , was arguably one of the most successful concubines in Chinese history. For example, the son of an Imperial concubine often had a chance of becoming emperor. The book illuminates - in striking case studies — attitudes toward non-procreative sex acts, and representations and experiences of same-sex pleasure seeking in the histories of Asia. Unofficial concubines Chinese: Although a concubine could produce heirs, her children would be inferior in social status to a wife's children, although they were of higher status than illegitimate children. Alvarez served as the President of the Asian American Psychological Association and has been involved in national-level projects and initiatives, advocating for all oppressed groups. During this period tablets for concubine-mothers seem to have been more commonly placed in family ancestral altars, and genealogies of some lineages listed concubine-mothers. It became permissible to promote a concubine to wife, if the original wife had died and the concubine was the mother of the only surviving sons. A concubinage relationship could be entered into without the ceremonies used in marriages, and neither remarriage nor a return to her natal home in widowhood were allowed to a concubine.