Trần Nhân Tông (7 December 1258–16 December 1308), personal name Trần Khâm, temple name Nhân Tông, was the third emperor of the Trần dynasty, reigning over ÃÂại Viá»Ât from 1278 to 1293. After ceding the throne to his son Trần Anh Tông, Nhân Tông held the title Emperor Emeritus () from 1294 to his death in 1308. During the second and third Mongol invasions of ÃÂại Viá»Ât, the Emperor Nhân Tông and his father the Emperor Emeritus Thánh Tông were credited with the decisive victory against the Yuan dynasty and would thenceforth establish a long period of peace and prosperity over the country.
After retiring from ruling the nation, he practiced Buddhism as a monk and founded the Trúc Lâm school of Vietnamese Buddhism.
Trần Nhân Tông was born on 7 December 1258 as Trần Khâm, the first son of Emperor Trần Thánh Tông, who had ceded the throne by Trần Thái Tông for only eight months, and Empress Thiên Cảm Trần Thá» Thiá»Âu. It was said that the newborn Trần Khâm was so becoming in appearance that his grandfather Thái Tông and father Thánh Tông named him as Kim Tiên ÃÂá»Âng tá» (Pupil of the Heavenly Kim Tiên).
Prince Trần Khâm was entitled as Crown Prince of the Trần dynasty in December 1274, he had a younger brother, Prince Tá Thiên (also known as Trần ÃÂức Viá»Âp) who was born in 1265 and an elder sister, Princess Thiên Thụy, who would die on the same day as her brother Nhân Tông. Always concerned with the education of his son, in 1274, Thánh Tông appointed the prominent mandarin and general Lê Phụ Trần in the position of the crown prince's professor with two famous scholars Nguyá» n Sé Cá» and Nguyá» n Thánh Huấn as assistants. The Emperor himself also composed poems and a literary work named Di háºÂu lục to educate prince Trần Khâm.
On 8 November 1278, Thánh Tông decided to cede the throne to the Crown Prince Trần Khâm, now Trần Nhân Tông, and held the title Emperor Emeritus. After the coronation, Nhân Tông changed the era name to Thiá»Âu Bảo ( , 1278–1285), during his reign, the emperor had one more era name which was Trùng Hðng ( , 1285–1293). Although passing the throne to his son, Thánh Tông continued to co-rule the country with Nhân Tông from 1279 to his death in 1290.
In 1279, the Yuan dynasty won a decisive victory over the Song dynasty in Battle of Yamen which marked the end of the Song dynasty and the total control of Kublai Khan over China. As a result, Kublai Khan began his conquest over the southern regions such as ÃÂại Viá»Ât and Champa. Being aware of the situation, Thánh Tông and Nhân Tông began to prepare the country for the war while trying to keep a flexible policy with the Yuan dynasty. Prince Chiêu VÃÂn (also known as Trần NháºÂt DuáºÂt) was appointed to pacify the revolt led by Trá»Ânh Giác MáºÂt in ÃÂàGiang. He tried by diplomacy to keep the country stable before the war. With his knowledge of a minority people's language and culture, he successfully accomplished his task in 1278, so now the country was free to deal with the threat from the North.
In October 1282, the Retired Emperor Thánh Tông and the Emperor Nhân Tông gathered all members of the royal family, and officials in the royal court in Bình Than to discuss the unavoidable war. Two prominent generals of ÃÂại Viá»Ât's army were called Trần Khánh Dð, former commander of the army but was deprived of all titles and Trần Quá»Âc Tuấn, who would later be called Prince Hðng ÃÂạo. In 1283 Quá»Âc Tuấn was appointed as commander-in-chief (Quá»Âc công tiết chế) of the army while the Retired Emperor and the Emperor began to hold military exercises with their generals and troops.
In December 1284, the second Yuan's invasion of ÃÂại Viá»Ât commenced under the command of Kublai Khan's prince Toghan. ÃÂại Viá»Ât was attacked in two directions, Toghan himself conducted the infantry and invaded from the north while the Yuan navy (under general Sogetu) advanced from the southern border through Champa's territory. In the beginning of the war, Thánh Tông and Nhân Tông had to call for retreat when Prince Chiêu Minh (also known as Trần Quang Khải) who commanded troops, were trying to stop Sogetu's fleet in Nghá» An Province.
During this time, several high-ranking officials and members of the Trần dynasty defected to the Yuan, this included Thánh Tông's own brother, Prince Chiêu Quá»Âc (also known as Trần ÃÂch Tắc) and Trần Kiá»Ân who was son of Prince Ténh Quá»Âc (also known as Trần Quá»Âc Khang).
For the safety of Thánh Tông and Nhân Tông's retreat, Princess An Tð was offered as a gift and diversion for prince Toghan while Marquis Bảo Nghéa (also known as Trần Bình Trá»Âng) was captured and later killed in the Battle of ÃÂàMạc while defending the two emperors. In the southern border, Quang Khải had to retreat under pressure from Sogetu's navy and the defection of the governor of Nghá» An.
The critical situation began to change with the dynasty's victory in the Battle of Hàm Tá» in April 1285 where troops commanded by Trần NháºÂt DuáºÂt, Prince Chiêu Thành, Quá»Âc Toản and Nguyá» n Khoái were finally able to defeat Sogetu's fleet. On 10 May 1285, Quang Khải fought in the decisive Battle of Chðáng Dðáng where Sogetu's navy was almost destroyed and the war turned in the favour of the Trần dynasty. Ten days after Sogetu was killed, Nhân Tông and Thánh Tông returned to the capital ThÃÂng Long on 6 June 1285.
In March 1287, the Yuan dynasty launched their third invasion of ÃÂại Viá»Ât. Unlike the second attack, this time Quá»Âc Tuấn affirmed with the Emperor that ÃÂại Viá»Ât's army could easily break the Yuan's military campaign. This invasion ended after only one year due to a disastrous defeat of the Yuan navy in the Battle of Bạch ÃÂằng on 8 March 1288. Besides Quá»Âc Tuấn, other notable generals of the Trần dynasty during this time were Prince Nhân Huá» (also known as Trần Khánh Dð) who destroyed the logistics convoy of the Yuan navy in the Battle of Vân ÃÂá»Ân. Another was general Phạm Ngà © Lão who took charge of ambushing prince Toghan's retreating troops.
In rewarding generals and mandarins after the victory, Thánh Tông and Nhân Tông cautioned them of the northern border. As to the defectors during the war, the Emperor issued an order in which the family name of every defected member of the Trần clan was changed to Mai, for example Trần Kiá»Ân was renamed as Mai Kiá»Ân. The only defected prince of the Trần clan, Trần ÃÂch Tắc, was exempted from this order but he was called in historical accounts of the Trần dynasty by the name "Ả Trần" ("the woman named Trần") meaning that Trần ÃÂch Tắc would be known as a "coward as a woman".
The Retired Emperor Thánh Tông died on 25 May 1290 at the age of 50. As the sole ruler of ÃÂại Viá»Ât, Nhân Tông ordered to relax the taxing policy, relieving the poor and postponing the military campaign against Ai Lao so that the country could recover after two fierce wars, several famines and natural disasters.
On 3 February 1292, Nhân Tông entitled his first son Trần Thuyên as Crown Prince of the Trần dynasty and passed the throne to him on 3 March 1293.
Nhân Tông would then spend more time in seeking spiritual awakening. In 1295, he was ordained as Buddhist monk. In 1299, he came to the mountain of Yên Tá» in modern-day Quảng Ninh, where he vowed to follow the ten ascetic practices as a Buddha's student. He also established a monastery, teaching about Buddhist principles and receiving a substantial amount of disciples. He was thought to have founded Trúc Lâm, the only indigenous Thiá»Ân Buddhist sect in Vietnam. In addition, he travelled across the nation to teach Thiá»Ân practices to monks and encourage his subjects to follow the Ten Good Acts theory (Daà Âakuà ÂalakarmÃÂá¹Âi).
In 1301, he visited Champa, and lived for nine months at Jaya Sinhavarman III's court.
In 1306, he gave his daughter, Princess Huyen Tran, in marriage to the Champa king Jaya Simhavarman III, in return for two Cham provinces.
Trần Nhân Tông married Princess Khâm Từ, later Empress Consort Khâm Từ Bảo Thánh, the eldest daughter of Grand Prince Hðng ÃÂạo Trần Quá»Âc Tuấn, in December 1274 when he was entitled as crown prince. Trần Nhân Tông had his first son, Trần Thuyên, on 17 September 1276, Trần Thuyên eventually became Nhân Tông's successor as Trần Anh Tông.
Most cities in Vietnam have named major streets after him.
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