When Lê Lợi became sick in 1433, he summoned his closest advisors (Lê Sát, Trịnh Khả, Pham Van Sao, Nguyễn Trãi, Tran Nguyen Han, and Le Ngan) to name Lê Thái Tông as his heir to the throne, at the time Lê Thái Tông was only ten years old.
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He struck an alliance with Trịnh Khả (who had been sent to a distant part of Vietnam).
Trịnh Khải | Trịnh lords | Trịnh Khả | Trịnh Bồng | Kha b-Nisan | Yat-Kha | Trinh Xuan Thuan | Trinh T. Minh-ha | Trịnh Khai | Trinh Cong Son | Trịnh Cán | Lê Khả Phiêu | Coralie Trinh Thi |