Trần Thái Tông
During the Lý and Trần dynasties, a "new" court Buddhism arose among the elites which was aligned with Chinese Chan and influenced by Chan literature. Some of the Trần rulers were quite involved in the development of Thiền Buddhism. Trần Thái Tông (1218–77) was known as the "Great Monk King" and wrote various important Buddhist works including "Lessons in the Void", "A Guide to Zen Buddhism" and a "Commentary on The Diamond Sutra," as well as poetry.