Especially, Prince Nhân Huệ was considered one of the most skilled commander of Trần navy who was credited with the victory of Đại Việt in Battle of Vân Đồn (1287).
[1] Being a gifted general, Trần Khánh Dư successfully pacified a revolt in the mountainous region of Đại Việt and was rapidly promoted in military rank from senior official (phó đô tướng quân) to commander in chief (phiêu kỵ tướng quân), a top-ranking position which was reserved exclusively for the Emperor's princes.
Hence, the Retired Emperor Thánh Tông intended to imprisoned him but Trần Khánh Dư begged for several days to achieve a feat against Yuan navy before being punished.
For his victory in Vân Đồn, Trần Khánh Dư was credited with the low casualties of Đại Việt during the third Mongol invasion.
It was Prince Nhân Huệ who personally redacted the presentation for Vạn Kiếp tông bí truyền thư, the military treatise composed by Trần Hưng Đạo.
His talent is still renowned today, a main street in Hanoi[13] and many places in Vietnam are named in honour of Trần Khánh Dư.
Each year in July, a traditional festival is held in Quan Lạn, Quảng Ninh to commemorate the feats of Trần Khánh Dư and the victory against the Mongol invaders.