Who they were
Le Thanh Tong (1442-1497) reigned from 1460 to 1497 as the greatest emperor of the Later Le dynasty, presiding over its golden age. He was also a poet who led the Tao Dan literary circle of court poets.
What they did
His Hong Duc legal code adapted Confucian law to Vietnamese custom — preserving, as scholars commonly note, stronger property and inheritance rights for women than Chinese models. He reorganized the realm into thirteen provinces staffed by a full examination bureaucracy; the doctors’ stelae at Hanoi’s Temple of Literature began under him, the first erected in 1484. The Hong Duc map survey and the era’s legal-administrative compilations date to his reign. In 1471 his campaign against Champa took its capital Vijaya, breaking Champa’s power and annexing its northern lands - a devastating blow to that kingdom.
Legacy
He is the model Confucian monarch of Vietnamese history. “Hong Duc” still names the institutions of his era, from the code to the maps.