竇武
Empress Dou Miao (; died 172), formally Empress Huansi (literally, "the diligent and deep-thinking empress"), was an empress during the Han Dynasty. She was the third wife of Emperor Huan. After his death in 168, she served as regent for his successor Emperor Ling, assisted by her father Dou Wu and the Confucian scholar Chen Fan (陳蕃). Dou and Chen had a major confrontation with powerful eunuchs later in 168 and were defeated and killed. After that, she was under house arrest until her death.