One of the imperial diplomas from the collection of the Institute of Oriental Manuscripts was written in both Manchu and Mongolian languages and given to the wife of a Mongolian nobleman Subdubdorji conferring on her the title wife of beise. The decoration of the diploma and accordion-type binding show that the owner was of high position. An analysis of the text suggests that it was originally written in Mongolian and then translated into Manchu. Patents granting hereditary ranks and titles to Mongols were issued in Beijing by the Board of Colonial Affairs and then sent to Mongolia. Only few of them are known to have been given to women, one of those is published in the article.