Lê Thái Tông

Lê Thái Tông became increasingly unhappy with his regent's actions and sought support from rival factions.

One of his first acts upon officially taking the throne in 1438 was to bring Trịnh Khả back and installed him as the head of the Palace Guards - against Lê Sát's strong objections.

In spring 1440, an ethnic chief named Hà Tông Lai rebelled in Thu Vật sub-prefecture in Tuyên Quang (Northwest Đại Việt).

Not long after that, in 1440 another ethnic chief named Nghiễm broke loyalty with the court and gathered troops in the Gia Hưng prefecture, also in the nation's northwest area.

That satisfied the king enough and he ordered the army to retreat, partly due to the fact that the weather was excessively hot causing difficulties to his troops.

[4] Those military successes caused Thái Tông to be assessed by Vũ Quỳnh, high-ranking minister and court annalist during the reign of Lê Tương Dực, as a "heroic king".

[5] Although Lê Thái Tông proved to be a capable king, his one flaw was his desire for women, and the imperial court was soon filled with intrigue as he shifted his affections from one concubine to another.

On 4 August 1442, the king paid a visit to the eastern part of the country and paid a visit to Lệ Chi Viên, or Lychee Garden belonging to the Confucian scholar Nguyễn Trãi, located in Đại Lai, Gia Bình, Bắc Ninh Province.