Tang dynasty
Zhu Wen, originally a salt smuggler who had served under the rebel Huang Chao, surrendered to Tang forces. By helping to defeat Huang, he was granted a series of rapid military promotions. In 907 the Tang dynasty was ended when Zhu Wen, now a military governor, deposed the last emperor of Tang, Emperor Ai of Tang, and took the throne for himself (known posthumously as Emperor Taizu of Later Liang). He established the Later Liang, which inaugurated the Five Dynasties and Ten Kingdoms period. A year later Zhu Wen had the deposed Emperor Ai poisoned to death.
Trần Thị Dung
Mother of the Nation Lady Linh Từ (Vietnamese: Linh Từ Quốc mẫu, Hán tự: 靈慈國母) Trần Thị Dung (?–1259) was the last empress and the last empress mother of the Lý Dynasty. She was entitled by the Emperor Lý Huệ Tông as Empress Consort of the Lý Dynasty from 1216 to 1225 before becoming Empress Mother of the Lý Dynasty when her daughter Lý Phật Kim was enthroned as Lý Chiêu Hoàng in 1225. After Trần Thủ Độ, Trần Thị Dung's cousin, successfully overthrew the Lý Dynasty and founded the Trần Dynasty, Trần Thị Dung was downgraded to Princess Thiên Cực while her brother Trần Thừa's son became Trần Thái Tông, first emperor of the Trần Dynasty. Besides Lý Chiêu Hoàng, Trần Thị Dung had another daughter who eventually also became Empress of the Trần Dynasty, the Empress Thuận Thiên.