fact that the weather was excessively hot causing difficulties to his troops. In the early part of 1441, Đại Việt's official history recorded that Nghiễm again took arms against the court. Lê Thái Tông made a third campaign to the northwest with his troops. Under the direct command of the emperor, the imperial hosts defeated a Laotian army having come to assist Nghiễm. They also captured two of Nghiễm's sons Sinh Tượng and Chàng Đồng. The campaign resulted in Nghiễm permanently submissing to the authority of the imperial court. 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 emperor". Although Lê Thái Tông proved to be a capable emperor, 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. His first wife was the daughter of Lê Sát, his second wife was the daughter of Le Ngan, his third wife was Duong thi Bi, who gave birth to his first son Nghi Dân. He soon transferred his affections to Ngo Thi Ngoc Dao and Nguyễn Thị Anh. This last young woman gave birth to his third son (and immediate heir) Lê Nhân Tông. However, Ngo Thi Ngoc Dao would give birth to his most widely known son, Lê Thánh Tông. Death On 4 August 1442, the Emperor 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. A concubine of Trãi, Lady Nguyễn Thị Lộ, was chosen to tend to the Emperor during the royal stay. The young emperor became very sick suddenly and quickly died. The next morning Trãi was accused of killing the Emperor, and together with members of his family was executed. In 1464, Emperor Lê Thánh Tông issued a royal proclamation to vindicate Trãi, saying that he was wholly innocent in the death of Lê Thái Tông and praised him by stating that “Trai’s spirit shines like a star". The surviving son of Trãi, Nguyễn Anh Vũ was made an officer for the Royal Court. Despite the vindication Trãi was considered guilty by some historians and scholars, because of his relationships with Lady Nguyễn