On 19 September 1885 with the backing of the governor of Annam, Prince Nguyễn Phúc Ưng Kỷ was crowned as the ninth emperor of Đại Nam with the era name of Đồng Khánh.

After that, Hàm Nghi was betrayed by his loyal subject Trương Quang Ngọc [vi][;] then he was captured by [the] French and exiled [to] Algérie.

He was granted the posthumous name Hoằng Liệt Thông Thiết Mẫn Huệ Thuần Hoàng Đế (弘烈聰哲敏惠純皇帝), with the temple name Cảnh Tông (景宗).

In 1916, his son the Emperor Khải Định granted him the name Phối Thiên Minh Vận Hiếu Đức Nhân Vũ Vĩ Công Hoằng Liệt Thông Thiết Mẫn Huệ Thuần Hoàng Đế (配天明運孝德仁武偉功弘烈聰哲敏惠純皇帝).

He was buried in Tư Lăng mausoleum (思陵), which is located at Dương Xuân Thượng village, Hương Thuỷ commune, Thừa Thiên Province.