In the anti tax-collection case in Trung Kỳ in 1908, he was arrested by the French colonialists and sentenced to death by waist cutting even though the authorities had no evidence.[3]
^Jonathan D London Education in Vietnam Page 10 2011 "The ultimately unsuccessful Cần Vương (Aid the King) Movement of 1885–89, for example, was coordinated by scholars such as Phan Đình Phung, Phan Chu Trinh, Phan Bội Châu, Trần Quy Cáp and Huỳnh Thúc Kháng, who sought to restore sovereign authority to the Nguyễn throne."