After the election, the couple moved into the Presidential Palace. Madame Nhu was influential on government policy and, since her brother-in-law, Ngô Đình Diệm, was unmarried, she was regarded as the First Lady of South Vietnam. She attempted to syncretize Roman Catholicism with a cult around herself as a modern reincarnation of Vietnam's fabled Trưng Sisters, who raised a revolt against China and temporarily defeated the Hán Dynasty Chinese troops in AD 40. President Diệm never married and is not known to have had a relationship with any women, through his bodyguard noted he was fond of keeping "good looking men around him". Diệm, who was known for his poor social skills, decided to have his sister-in-law serve as the unofficial First Lady of South Vietnam. Madame Nhu frequently talked to the Vietnamese, French and other foreign press quite candidly. Madame Nhu's marriage was unhappy as she wrote in her diary of an all consuming "rising desire" in her body, complained her husband had little interest in sex with her, and wrote with disgust of his affections for a younger woman whom she called that "creature" who was very "vulgar" and "dirty". Madame Nhu devoted her time to politics, championing a new Family Code she presented to parliament in October 1957 and passed in June 1958 to replace the old French code that banned concubinage and polygamy; allowed women to open bank accounts and own property; and required that daughters be given greater inheritance rights.