General Tokugawa's biography of Zhen Huan, concubines over 30 years old can not serve the bed, the most absolute is the queen has no right to have children one, the country daimyo nouveau riche two, the failure to marry a daughter three, marry the Tenryu plan iv, the governance of the Oio five, godaisho and Kyoto Wenfeng Wen Shijun said references