Empress Dou (竇皇后, personal name unknown; c. 63[2] – 8 October 97 CE), formally Empress Zhangde (章德皇后, literally "the polite and virtuous empress"), was an empress of the Chinese Han dynasty. Her husband was Emperor Zhang. She was already influential and powerful during her husband's reign, but became particularly highly powerful and influential as empress dowager and regent between 88 and 92 for her adoptive son Emperor He after Emperor Zhang's death.[3] Her family members, particularly her brother Dou Xian, became extremely powerful, until they were toppled in a coup d'etat by Emperor He, in 92. Empress Dou lost her power, but remained honored until her death.
^xinsi day of the leap month of the 9th year of the Yong'yuan era, per Emperor He's biography in Book of the Later Han
^Lady Dou's age when she died was not recorded in her biography in Book of the Later Han. But, her biography indicated that she was older than 6 (by East Asian reckoning) when she joined the imperial harem in 77 (2nd year of the Jian'chu era).