咸宜帝
Thuyết was also secretly drawing upon the economy to make guns for a secret fortress in Tan So. Tôn Thất Thuyết had an associate, Nguyễn Văn Tường, who was also considered a problematic mandarin by the French. In 1884, the Emperor Hàm Nghi was enthroned as the Emperor of Vietnam. Only twelve years of age, he was easily and quickly dominated by the regents Thuyết and Tường. By now, the French had realized the obstacles the two mandarins posed and decided to remove them.