The Grand Secretariat, or the Cabinet of the Nguyễn dynasty, was the highest branch of its government until the 1930s. Its functions were to serve at the pleasure of the emperor. The Grand Secretariat
Emperor Khải Định and member of Nội các.From left to right: Hồ Đắc Trung, Tôn Thất Hân, emperor Khải Định (middle), Nguyễn Hữu Bài and Đoàn Đình Duyệt.