Nguyễn Trãi
Lê Lợi renamed the capital, Thăng Long, to Đông Kinh, which later known as Tonkin. He embarked on a significant reorganization of the Vietnamese government, based on the old system of government which was developed during late 14th century. He also elevated his longtime comrades and generals such as Nguyễn Trãi, Tran Nguyen Han, Lê Sát, Pham Van Sao, and Trịnh Khả to high official rank.