Trần Hưng Đạo
The advancement of Prince Nhân Huệ was destroyed by his adulterous affair with Princess Thiên Thụy, wife of Prince Hưng Vũ Trần Quốc Nghiễn and daughter-in-law of Trần Hưng Đạo who was one of the most powerful figures of Trần family and royal court. In order to avoid the fury from Trần Hưng Đạo, the Emperor Trần Thái Tông instructed his officials beat Trần Khánh Dư to death in West Lake but actually the Emperor spared Prince Nhân Huệ's life and only deprived him from all titles and properties except the land grants in Chí Linh that Trần Khánh Dư inherited from his father. As a result, Trần Khánh Dư had to earn his life by charcoal trading which was still considered as a humble profession at that time.