《新唐书·本纪·卷六·肃宗 代宗》
宝应元年正月初四，追封靖德太子李琮为皇帝，李琮妃窦氏为皇后。
宝应元年建寅月甲申，追册靖德太子琮为皇帝，妃窦氏为皇后。
On January 4 in the first year of Bao Ying, Prince Jing De, Li Cong, was posthumously granted the emperor title, and Li Cong's concubine, Dou Shi, was granted the empress title.